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Sunday, June 30, 2024

Technoself studies

From Wikipedia, the free encyclopedia

Technoself studies, commonly referred to as TSS, is an emerging, interdisciplinary domain of scholarly research dealing with all aspects of human identity in a technological society focusing on the changing nature of relationships between the human and technology. As new and constantly changing experiences of human identity emerge due to constant technological change, technoself studies seeks to map and analyze these mutually influential developments with a focus on identity, rather than technical developments. Therefore, the self is a key concept of TSS. The term "technoself", advanced by Luppicini (2013), broadly denotes evolving human identity as a result of the adoption of new technology, while avoiding ideological or philosophical biases inherent in other related terms including cyborg, posthuman, transhuman, techno-human, beman (also known as bio-electric human), digital identity, avatar, and homotechnicus though Luppicini acknowledges that these categories "capture important aspects of human identity". Technoself is further elaborated and explored in Luppicini's "Handbook of Research on Technoself: Identity in a Technological Environment".

History and contextual framing

Technoself evolved from early groundwork in identity studies, philosophy of mind, and cognitive science. René Descartes is often credited as one of the first identity theorists of Modernity to question the material world and the certainty of knowledge from the self. Despite heavy criticism, the question he posed regarding the necessary relation between the mind and body is still considered a prevalent theme in contemporary discussions of identity and technology. Another major development in identity studies came from early social psychology, sociology and psychoanalysis. Beginning with Freud, the psychoanalytic tradition shed some light on the dynamics of identity and personality development. Erving Goffman expanded the inquiry of identity with his dramaturgical theory, which emphasized the centrality of the social realm and the notion of self-presentation to identity. Later, Foucault further expanded the area of inquiry by contemplating how technologies could facilitate the emergence of new ways of relating to oneself.

The most entrenched area of technoself studies is revolved around ontological considerations and conceptualizations of technoself. The effort to identify the essence of human being is frequent in philosophical circles and is entrenched within emerging theoretical scholarship on technoself. DeGrazia's (2005) examination on identify/numerical identity to shed light on the ethics of human enhancement. According to DeGrazia, human identity is divided into two parts: 1) numerical identity (concerns the continuity of an individual as the same object over time or across procedure), and 2) narrative identity (concerns the changes in self-perception experienced by an individual over time). By dividing human identity into two parts, DeGrazia is facilitating a discussion on the ethics of human enhancements. Meanwhile, Croon Fors(2012) research on the entanglement of the self and digitalization have helped frame ontological considerations related to the conceptualization of technoself studies. Furthermore, the changing nature of identity is a common theme within technoself studies. As a result, this has given way for scholars to analyze questions such as: How are advances in sensing technologies, biometrics, and genetics changing the way we define and recognize identity? How are technologies changing the way people define themselves and present themselves in society? These types of questions are being heavily analyzed as the conceptualization of identity is changing rapidly.

Central to the understanding of the development of technoself studies as a field of research is the idea that human identity is shaped by the adoption of new technologies and the relationship between humans and technology. Advancements in digital technology have recently forced researchers to consider the conception of the self in relation to the increasing reliance of society on the use of technologies (such as cellphones, tablets, and social media) in daily tasks in peoples' personal and professional lives. New technologies, particularly computer-mediated communication tools, have raised questions related to identity in relationship to privacy issues, virtual identity boundaries, online fraud, citizen surveillance, etc. These issues come as our perspective on technology shifts from one of functionality to one of interaction. According to John Lester, in the future, "we won't simply enjoy using our tools, we will come to care for them".

Related terms

Noeme

The noeme is a term coined in 2011 by biogerontologist Marios Kyriazis, and it denotes a "combination of a distinct physical brain function and that of an outsourced virtual one". A noeme is the intellectual "networked presence" of an individual within the global brain, a meaningful synergy between each individual human, their social interactions and artificial agents, globally connected to other noemes through digital communications technology. Kyriazis further clarifies that:

...The noeme is structurally coupled with its medium, i.e. the computer/internet. It continuously generates its own organisation and specifies its operation and content. As a self-organising system it adjusts to external influences and reinvents itself in order to adapt to its environment i.e. it reproduces (self-replicates) horizontally in a process that can be termed 'noemic reproduction'. This digital intellectual manifestation of a person, if successful, will lead to others copying it, thus noemes are replicating... A noeme is not just a collection of single ideas or solitary intellectual achievements. It is the total sum of all individual cognitive efforts and active information-sharing accomplishments of a person, the intellectual standing of a person within the Global brain.

Cyborg

A cyborg (cybernetic organism) is a term referring to individuals with "both biological and artificial parts." Cyborgs are known as being half-human, half machine organisms, due to the fact that they are always connected with technology. This term, which was coined in 1960 by Manfred Clynes, refers to and acknowledges those beings whose abilities have been enhanced due to the presence and advancement of technology. The notion of cyborg has played a part in breaking down boundaries between humans and non-humans living within a technologically advanced society. For example, those who have installed pacemakers, hearing aids, artificial body parts, cochlear implants as well as other technologies that may aid in enhancing an organism's abilities and capacities to perform, either physically or mentally. Hugh Herr, an American rock climber, engineer, and biophysicist, has successfully invented the next generation of cyborg (bionic limbs and robotic prosthetics). As the head of the Media Lab's Biomechatronics group in MIT, he shared his experience and presented the team achievement first time in a TED talk show.

Transhuman

Transhuman is a concept that emerged as a result of the transhumanist movement which is centred around the notion of improving the abilities of human beings mainly through both 'scientific and technical means.' Unlike the posthuman concept, the notion of transhuman is based on human augmentation but does not commit itself to positing a new separate species. The philosophy of transhumanism was developed in the 1990s by British philosopher Max More who articulated the principles of transhumanism as a futurist philosophy. Transhuman philosophy has been subject to scrutiny by prominent scholars such as Francis Fukuyama.

Posthuman

Posthuman is a concept that aims towards signifying and characterizing a fresh and enhanced type of being. This organism is highly representative of a being that embraces drastic capabilities that exceed current human capabilities that are presently defining human beings. This posthuman state of identity has mainly resulted from the advancement of technological presence. According to Luppicini, posthuman capabilities "suggest a new type of being over and above human. This compromises the neutrality needed for a clear conception of human identity in the face of human-technological integration." This concept aims towards enabling a brighter future concerned with gaining a better perception of the world through various viewpoints.

Homotechnicus

Homo technicus is a term "first coined by Galvin in 2003 to help refine the definition of human beings to more accurately reflect the evolving condition of human beings intertwined within advancing technological society". It refers to the notion that human beings are technological by nature and evolve simultaneously with technology. Galvin states in his article titled "On Technoethics", "mankind cannot do away with the technical dimension, going even to the point of considering this part of its constitution: mankind is technical by nature. Technology is not an addition to man but is, in fact, one of the ways in which mankind distinguishes itself from animals." Luppicini builds upon the concept of homo technicus in his book Handbook of Research on Technoself: Identity in a Technological Society. Luppicini feels that the notion of homo technicus contributes to the conception of humans as technoselves in two ways. First it helps to solidify the idea of technology as being a key component in defining humans and society and secondly it demonstrates the importance of technology as a human creation that aligns with human values. He further goes on to explain that human interactions with the material world around them helps to create meaning and this unique way of creating meaning has affected how humans have evolved as a species.

Note: the term homo technicus was coined earlier than 2003. For instance, it was used by Russell E. Willis in his 1990 PhD dissertation for Emory University: Toward a Theological Ethics of Technology: An analysis in Dialogue with Jacques Ellul, James Gustafson, and the Philosophy of Technology. It was later used by Willis in "Complex Responsibility in an Age of Technology," in Living Responsibly in Community, ed. Fredrick E. Glennon, et al. (University Press of America, 1997): 251ff. In both publications homo technicus is offered as a model for the responsible self in an age of pervasive technology.

Avatar

Avatars represent the individual, the individual's alter ego, or character(s) within virtual environments controlled by a human user. Avatars provide a unique opportunity to experiment with one's identity construction within virtual worlds (Turkle, 1995) and to do so with others". Examples of avatars can include personas in online games or virtual life simulations such as Second Life.

Technohuman

A new hybrid form of creature that results from an intertwinement between human and machine.

Technosapien

A techno-sapien would be a slang term for a human being who is familiar and comfortable with technology. Someone who has the latest gadgets and electronic machinery would be techno-sapien.

Digital identity

Digital identity is the data that uniquely describes a person or a thing and contains information about the subject's relationships. The social identity that an internet user establishes through digital identities in cyberspace is referred to as online identity.

Key areas and issues

The areas of focus in TSS are: philosophical inquiry and theoretical framing, digital identity and virtual life, human enhancement technologies, and their regulation. These areas of study have been influenced by extensive research, and input from an editorial advisory and review board over the course of several years.

Digital identity and virtual life

Digital identity and virtual life looks at how individuals explore, develop and represent their identities in online, virtual, or mediated environments. Research on virtual life and digital identities is concerned not only with how individuals relate to their own mediated identities, but also with how they relate to those of others. With the current popularity of social networking service sites, it is no surprise that TSS scholars have also begun studying the effects that such constant and mediated social connections have on identity. Topics that fall under this category have included intellectual disability, gender identity, and mass media in sport.

Critical areas of research include: how individuals treat the identity of others in an online space; how people use media to develop and project their identity; and how digital representation can alter life meaning and identity (Luppicini, 2013). Such research examines the advantages and disadvantages of online life and digital identity construction.

Areas of digital identity and virtual life have become quite popular, e.g. online avatars. Scholars are now focused on the role avatars play in identity exploration, priming behaviours, and self-presentation. Other research looks at the use of communication technologies by immigrant individuals as part of a digital diaspora. These scholars examine a trend in which diasporic immigrants who feel disconnected from their cultural identities have turned to digital technologies as a way to reconnect.

The term "technoself" is often used interchangeably with "virtual self". In this case, technoself is used to refer to a virtual manifestation of one's self. The ability to project one's self into a virtual world allows users to control their appearance and personality. Users are able to customize their virtual identity and craft a persona to their liking. The malleability of online identities allows users to not only create their own virtual self, but also to continually change and mold their online selves in ways impossible to do with their real identities. Users can edit and change their virtual selves' appearance and behavior to control other users' perception of them.

The ability to create and change your identity in this way, is due to anonymity. Anonymity is a paramount and dynamic feature of virtual social interaction within the online public sphere. As individuals are not required to reveal their real identity, they are able to explore new and undiscovered aspects of themselves. In this expansion of the self, anonymous individuals may try on various identities which break traditional social norms, without fear of retribution or judgment. This contributes to the creation of 'super-selves', through which individuals may amplify aspects of their projected identities in order to form an ideal expression of the self.[5] The fact that the vast majority of virtual encounters are anonymous in nature allows a 'strangers on a train' phenomenon to take place. Through invented and unknown personae, individuals are able to engage in self-disclosure, transvestism, and fantasies. However, this freedom may not be absolute, as there are many risks in participating in an online community, including identity theft and the potential linkage between anonymous and manifest identities. Anonymity also may have legal ramifications, making it difficult for law enforcement to maintain control over online communities. Tracking down online law-breakers is difficult when their identity is unknown. Anonymity also frees individuals so that they are able to behave in socially undesirable and harmful ways, which can result in forms of hate speech and cruel online behaviour. Lastly, anonymity also diminishes the integrity of information, and as a result, diminished the overall trust of online environment.

Many online users choose to attempt anonymity through the use of avatars. Users associate themselves with avatars as digital representatives within a duplicated and simulated virtual community. The user's body is essentially plugged in within the avatar world, thereby creating the illusion of infinite "space" behind the computer screen. As a result, they provide the opportunity for users to manipulate their worlds and the spaces and objects with which they interact. Participation in online communities has resulted in the creation of a virtual economy based on the semantic value of digital products. This form of online consumerism is centered on the creation of avatars as extensions of the self. The purchase of symbolic goods for these avatars relates to the emotional and social value that the user holds for these items. These products may indicate roles or personality traits of players within a community and consist primarily of task oriented and nonfunctional items.

Luppicini argues that the rise of online life creates serious questions on the advantages and disadvantages of online communities along with the challenges to online identity construction (Turkle, 1999). He notes the negative influence of the impersonality of virtual communities on offline interaction and the consequence of Internet addiction. Sherry Turkle states: "We discovered the network – the world of connectivity – to be uniquely suited to the overworked and overscheduled life it makes possible. And now we look to the network to defend us against loneliness even as we want it to control the intensity of our connections".

Privacy and surveillance of the technoself

Computer networking and smart technologies such as radio frequency identification (RFID), geographical information systems (GIS), and global positioning systems (GPS) are providing new tools and techniques for monitoring individuals and their behavior. The rise in these types of technologies has raised concerns over the invasion of privacy, and the misuse of information. That is because the networked identity of technoselves can be exploited by third parties who may want to gain access and control over personal information. Moreover, the implications of the sophisticated technologies for identifying and tracking people, the storage of this data, and the governmental use of surveillance to track suspicious types of people are significant issues in privacy/surveillance and TSS. The availability of related technologies (e.g. EyeTap, Memoto) to individuals (as opposed to governments or commercial interests) has also led to the phenomenon dubbed sousveillance, whereby individuals track or record authorities' activities either online or in real environments.

Leading scholars in the study of surveillance include David Lyon and Mark Andrejevic. In addition to contributing to the advent of citizen journalism, the proliferation of sousveillance technologies has suggested a number of legal/regulatory, ethical, and social implications for democratic and consumer rights. A dramatic illustration of these concerns comes from University of Toronto Professor Steve Mann, a privacy rights advocate and pioneering engineer of such technologies. After being allegedly assaulted in a French McDonald's restaurant for wearing an augmented-reality digital eye glass device, Mann was, ironically, allegedly denied access to McDonald's own surveillance camera footage. This led to Mann's coinage of the term "McVeillance" for instances of surveillance/sousveillance double standards and to his contribution the proposal of the Mann-Wassell law in the New York legislature.

Human enhancement technology

Human enhancement technology (HET) is the study of tools that would better and improve a human being's way of life. It seeks to advance and progress what humans already do within their normal lives. However, customarily it seeks to aid any illnesses and weaknesses in the body. Popular topics within this new area of study include, sex reassignment surgery, mood enhancers, genomics, and neuroenhancement. Enhancement within the workplace is a new topic of discussion, while the workplace should be adapting to the various types of human impairment, it seems that improving the workers is of more concern to corporations. Through the use of cyborg prosthetics one can assemble themselves in their own vision, any disfigurement or handicap can possibly disappear. Within the evolution of cyborg prosthetics a human is able to physically grasp things more easily, allowing more of the population to engage in whatever they choose. A large aspect of this technology stems from the ability to determine who may and may not benefit, as well as how access to these new technologies should be controlled.

Human bodies can now not only be improved upon through natural means, but through the effects of technology. This new form of enhancement is connected with what humans perceive of themselves, and as to how their own identity is created. A human operates based on their abilities; these capabilities are the factors and characteristics that create a personality. The augmentation of these aptitudes leads to a new human, who has a renewed sense of who they are. The term 'free to be me' is closely related to this new form of enhancement, wherein technological enhancements can be either cosmetic or reconstructive. Through the incorporation of medicine and technology "...cosmetic surgery then becomes a technology through which the body is normalized and homogenized as much as enhanced". A proper example relating to human enhancement and cyborgs could be the recently convicted Oscar Pistorius. In past years, Pistorius fought with the International Olympic Committee to have a place in the hurdles events of the 2012 Olympics in London. The controversy surrounding Pistorius extended to his artificial legs, and how they compared to the natural human anatomy; did Pistorius have an unfair advantage over his competitors? The ruling was left up to a scientific analysis of his legs and running stride which ultimately led to his participation in the Olympic Games. Therefore, we have come to a time where decisions, and thus human panels, need to determine what is human, what is natural, and what is artificial.

Rights and privacy issues over human enhancement technology has given rise to challenging topics within technoself studies. For example, the consideration of ethical policies and guidelines in the deployment of HET is an emerging topic within TSS. Further, the question of access to HET, and where we draw the line between necessary therapeutic technologies, and frivolous human enhancement are being raised in TSS. Therefore, the emerging topic regarding the rights and privacy over HET is of great interest within TSS. Popular HET's topics in recent research academia include: Sex (re assignment) (Diamond & Sigmundson, 1997; Zucker, 2002), mood enhancers (Rabin, 2006), cognitive enhancers (Walker, 2008), genomics (Zwart, 2009), and neuroenhancement (Northoff,1996). A second line of inquiry explores social, legal, and ethical aspects of human enhancement and possible threats to human dignity that could arise from the implementation of human enhancements (Bostrom, 2005).

Some critiques engage a discussion between the development of HET and the socio-economic environment. Francis Fukuyama, an American political scientist concerns about the future of HET might cause the extension of contradiction between the rich and poor within comparatively rich, industrialized nations because HET is likely to be a luxury product. At the moment, HET seems to be hard to be mainstream in public health services due to the price, which creates a deeper distinctions among those who can afford the technology and those who will remain disabled.

Transhumanism

Transhuman thought focuses on beliefs held that the fundamental transformation of the human condition will be through the development of various technology, which will eventually eliminate human aging and will enhance human capacities, both physical and mental. Believers in this theory think that the future of human development will see a new intelligent species that will be enhanced by the technological advances. They use these technological advances to approach various issues regarding the human experience, like morality and health issues. They see this convergence happening through the support of current technologies and the vision of technology in the future; using these advances to eventually make humans more than human, enhanced through this technology. Their central argument is that humans need to be able to choose whether or not this technology is used by them or not.

This theory expands on the notion of technoself, as transhumanism poses what to many who hold these beliefs is the natural evolution of the human condition. Many look to the history of technological advancements as proof that these future advancements are possible, at least in theory.

Real and virtual identities

Avatars are a visual representation of a user in an online environment. This representation may be an accurate physical representation of the user, or may be completely different. This online representation may affect the offline self. Pena and his colleagues explored a phenomenon known as the "Proteus effect" wherein "avatars can prime negative attitudes and cognition in desktop virtual settings". They conducted a study that demonstrated how the appearance and affiliations of an individual's online avatar can alter the individual's offscreen personality and attitudes. Pena's group used virtual group discussions to gauge the aggressiveness of individuals using avatars wearing black cloaks versus their control group counterparts wearing white and found more aggressive intentions and attitudes in the black cloak group.

Similar results were found in a second study that used Thematic Apperception Test studies to determine the differences between values and attitudes of a control group and a group using a Ku Klux Klan (KKK)-associated avatar. Individuals using the KKK-associated avatars were less affiliative and displayed more negative thoughts than the control group. Further support for Pena et al.'s work can be found in other studies that yielded similar results: "Yee and Bailenson found that, in an immersive 3D environment, participants using avatars with more attractive faces walked closer and disclosed more information when compared to those using avatars with less attractive faces. In addition...participants using taller avatars tended to negotiate more forcefully in comparison to those using shorter avatars." A growing body of evidence supports how our online personas can affect our offline self; altering our attitudes and values.

Online anonymity and presentation of the self

Online anonymity is commonly described using the phrase "On the Internet, nobody knows you're a dog". Online anonymity allows users to present different versions of themselves in online environments. Unconstrained by physical limitations, users are free to choose and construct their virtual form(s) and identities. Virtual spaces which foster such freedom and anonymity therefore allow users to depart from the expectations, norms, and behaviours of their daily lives. It can be said that this unlimited freedom of anonymous expression allows for the transfer of real world suppressed emotions to the online domain. However, if one continually chooses to express their true self anonymously online as opposed to in the real world via face to face interaction, which realm would be more 'real'? As extreme as this scenario may seem, one could say the suppression of norms and natural expression would deem the physical self the avatar, and the online avatar the true self.

A user's online identity is a social identity that represents the user in the online environment, allowing a user a high level of control over their identity in a way that differs from the offline world. Turkle found that the level of control over creating an online identity also extends to the intensity of connections made in such virtual spaces, as users may engage and disengage at will. Dervin and Abbas note that Turkle, in her early work was "one of the first to show how anonymity 'provides ample room for individuals to express unexplored parts of themselves' more easily than in face-to-face interaction". Within this notion of being free in online anonymity, technoself studies also looks at what the element of hiding does to us. Turkle suggests that, "our networked life allows us to hide from each other, even as we are tethered to each other". Technoself studies explores what these profiles do to the human unconscious. While people are "exposing" themselves, they question their level of exposure and sharing compared to extent in what they are truly hiding in reality. Furthermore, when creating online profiles, people risk others' perceptions of the information shared and if they receive the messages that the sender intended. Without verbal communication misperceptions, messages can alter identity or personal development.

Avatars can be an important element of the online presentation of the user. In many cases, "avatars in blogging were created to accurately reflect their owners' physical appearance, lifestyle and preferences. By contrast, participants in the dating and gaming treatments accentuated certain aspects of their avatar to reflect the tone and perceived expectations of the context". In other words, individuals often emphasize or downplay certain characteristics depending upon the context of their online interactions. These inconsistencies tend to be trivial, however. For instance, men tend to mildly exaggerate their height, while women often underestimate their weight. This is typically not an attempt to mislead others but to be as honest as possible while still presenting themselves in the best light.

According to Vasalou & Joinson, although various online forums may present people with the opportunity to create (an) alternate persona(s), they typically choose to create an avatar or represent themselves in a way that is consistent with reality: "In having equal access to everyday artifacts and fantasy options, participants were inclined to draw on existing self-views rather than grasping the opportunity to explore other personas". Furthermore, Vasalou and Joinson also claim that, in the context of online communication, high self-awareness (as demonstrated by an avatar largely consistent with an individual's offline persona), contributes to a higher rate of interpersonal communication.

One consequence of online anonymity and creating false identities is the ability to "catfish". Catfishing is a recent internet phenomenon, of manipulating, deceiving and luring people into relationships, through creating an online fictional persona. In many cases these deceptions are used to create romantic or intimate affairs. Since the affair happens entirely through technology, one is able to hide their true identity and carry on the relationship through their made up character. The majority of these incidences happen through social media sites, such as Facebook, and internet dating sites where people are already looking for love, and therefore can be easily manipulated by peoples personas and deceptions.

New directions and opportunities in research

Personalized robots and social integration of artificial creatures

New directions and opportunities in technoself research involving personalized robots and social integration of artificial creatures is becoming an increasing reality. Considering the work of pioneering computer scientists and robotics experts such a Rodney Brooks and Hiroshi Ishiguro, human interaction with personal and social robots reached mainstream audiences beginning with the popularization of robotic dolls and pets for children. Research by Sherry Turkle examines many of the effects of these social robots on children, middle and elderly. There are also robots for adults aimed at therapeutic (technotherapy), personal, and social applications (Paro Phobot, Roxxxy, etc.). These types of therapeutic robots are used in nursing homes and hospitals, with the purpose of creating an environment where one can nurture and communicate with an animal. This allows people in a lonely or isolated environment the ability to have something to care for and interact with that is also able to respond and interact back. This has shown to provide happiness and a larger sense of purpose for the individuals, even if for a short period of time. With personalized robots and the social integration of artificial intelligence, technoself is developing in children through relationships with robotic pets and related robotic technologies based on animals, objects, or people (Tamagotchi, Furby, AIBO, etc.). Current areas of interest in this topic are reported in Melson (2012), which provide helpful insights into children's views about robot pets, children's relationship with robotic pets and, conceptualizations of self-identity within child-robot relationships. Other research is focusing more on personalized robots for adults. If the trend towards the personalization of robots and social integration of artificial creatures continues, it is expected that this research will become more prevalent. David Levy, the artificial intelligence researcher in University of Maastricht contains the forecast of robot and human relationship in his thesis, "Intimate Relationships with Artificial Partners". In his interview Forecast: Sex and Marriage with Robots by 2050 with LiveScience, Levy says :"My forecast is that around 2050, the state of Massachusetts will be the first jurisdiction to legalize marriages with robots". are real life experience suggesting that humans can develop a psychological level relationship with artificial subjects, even if the subject itself is not in any physical shape. Judith Newman wrote an article on New York Times about the relationship between the Siri system and her 13-year-old son who has autism. Newman says his son develops a close relationship with the system and learning to show affection to it even though he knows Siri is not 'real'. Newman suggest that Siri could be a potential companion to those children who have a hard time to communicate with people. Duggan (2016) describes how users already form relationships with technology that share many of the features of relationships between humans. These relationships have important implications for the future of healthcare as interactive technology increasingly replaces roles traditionally filled by humans.

Human enhancement regulation and governance

Human enhancement regulation, governance, and legal concerns has become another growing concern for the opportunity of TSS research. According to Saner and Geelen (2012), there is one framework to guide technoself governance which distinguishes six different approaches to which emerging technologies may affect human identity:

  1. physical alteration of existing human beings
  2. changes to how existing human bodies are perceived
  3. the creation of novel humanoid bodies
  4. physical alteration of existing human environments
  5. changes to the way humans perceive existing human environments
  6. creation of novel human environments.

Luppicini posits that this sort of model could "prove invaluable for guiding future decision making directed at the framing of HET regulation debates, as well as leveraging strategic planning and decision making concerning HET adaption standards." Technoethics relates to the ethical considerations concerning technology in society.Human enhancement improves aspects of human function and may temporarily or permanently overcome the limitations of the human body through natural or artificial means. The consequences of such technological alterations implies ethical questions such as the unfair physical and mental categorization of certain individuals. Therefore, further consideration will need to be associated with ethical questions surrounding the evolution of technology. With growing trends of artificial intelligence and technological devices, such as Google Glass, stricter regulation will be necessary. Furthermore, Elon Musk recently stated that "We need to be careful with AI (artificial intelligence). Potentially more dangerous than nukes", meaning that there may be need to worry about the evolution of technology, and specifically how humans employ it to their benefit.

Saturday, June 29, 2024

Variational method (quantum mechanics)

In quantum mechanics, the variational method is one way of finding approximations to the lowest energy eigenstate or ground state, and some excited states. This allows calculating approximate wavefunctions such as molecular orbitals. The basis for this method is the variational principle.

The method consists of choosing a "trial wavefunction" depending on one or more parameters, and finding the values of these parameters for which the expectation value of the energy is the lowest possible. The wavefunction obtained by fixing the parameters to such values is then an approximation to the ground state wavefunction, and the expectation value of the energy in that state is an upper bound to the ground state energy. The Hartree–Fock method, Density matrix renormalization group, and Ritz method apply the variational method.

Description

Suppose we are given a Hilbert space and a Hermitian operator over it called the Hamiltonian . Ignoring complications about continuous spectra, we consider the discrete spectrum of and a basis of eigenvectors (see spectral theorem for Hermitian operators for the mathematical background): where is the Kronecker delta and the satisfy the eigenvalue equation

Once again ignoring complications involved with a continuous spectrum of , suppose the spectrum of is bounded from below and that its greatest lower bound is E0. The expectation value of in a state is then

If we were to vary over all possible states with norm 1 trying to minimize the expectation value of , the lowest value would be and the corresponding state would be the ground state, as well as an eigenstate of . Varying over the entire Hilbert space is usually too complicated for physical calculations, and a subspace of the entire Hilbert space is chosen, parametrized by some (real) differentiable parameters αi (i = 1, 2, ..., N). The choice of the subspace is called the ansatz. Some choices of ansatzes lead to better approximations than others, therefore the choice of ansatz is important.

Let's assume there is some overlap between the ansatz and the ground state (otherwise, it's a bad ansatz). We wish to normalize the ansatz, so we have the constraints and we wish to minimize

This, in general, is not an easy task, since we are looking for a global minimum and finding the zeroes of the partial derivatives of ε over all αi is not sufficient. If ψ(α) is expressed as a linear combination of other functions (αi being the coefficients), as in the Ritz method, there is only one minimum and the problem is straightforward. There are other, non-linear methods, however, such as the Hartree–Fock method, that are also not characterized by a multitude of minima and are therefore comfortable in calculations.

There is an additional complication in the calculations described. As ε tends toward E0 in minimization calculations, there is no guarantee that the corresponding trial wavefunctions will tend to the actual wavefunction. This has been demonstrated by calculations using a modified harmonic oscillator as a model system, in which an exactly solvable system is approached using the variational method. A wavefunction different from the exact one is obtained by use of the method described above.

Although usually limited to calculations of the ground state energy, this method can be applied in certain cases to calculations of excited states as well. If the ground state wavefunction is known, either by the method of variation or by direct calculation, a subset of the Hilbert space can be chosen which is orthogonal to the ground state wavefunction.

The resulting minimum is usually not as accurate as for the ground state, as any difference between the true ground state and results in a lower excited energy. This defect is worsened with each higher excited state.

In another formulation:

This holds for any trial φ since, by definition, the ground state wavefunction has the lowest energy, and any trial wavefunction will have energy greater than or equal to it.

Proof: φ can be expanded as a linear combination of the actual eigenfunctions of the Hamiltonian (which we assume to be normalized and orthogonal):

Then, to find the expectation value of the Hamiltonian:

Now, the ground state energy is the lowest energy possible, i.e., . Therefore, if the guessed wave function φ is normalized:

In general

For a hamiltonian H that describes the studied system and any normalizable function Ψ with arguments appropriate for the unknown wave function of the system, we define the functional

The variational principle states that

  • , where is the lowest energy eigenstate (ground state) of the hamiltonian
  • if and only if is exactly equal to the wave function of the ground state of the studied system.

The variational principle formulated above is the basis of the variational method used in quantum mechanics and quantum chemistry to find approximations to the ground state.

Another facet in variational principles in quantum mechanics is that since and can be varied separately (a fact arising due to the complex nature of the wave function), the quantities can be varied in principle just one at a time.

Helium atom ground state

The helium atom consists of two electrons with mass m and electric charge e, around an essentially fixed nucleus of mass Mm and charge +2e. The Hamiltonian for it, neglecting the fine structure, is: where ħ is the reduced Planck constant, ε0 is the vacuum permittivity, ri (for i = 1, 2) is the distance of the i-th electron from the nucleus, and |r1r2| is the distance between the two electrons.

If the term Vee = e2/(4πε0|r1r2|), representing the repulsion between the two electrons, were excluded, the Hamiltonian would become the sum of two hydrogen-like atom Hamiltonians with nuclear charge +2e. The ground state energy would then be 8E1 = −109 eV, where E1 is the Rydberg constant, and its ground state wavefunction would be the product of two wavefunctions for the ground state of hydrogen-like atoms: where a0 is the Bohr radius and Z = 2, helium's nuclear charge. The expectation value of the total Hamiltonian H (including the term Vee) in the state described by ψ0 will be an upper bound for its ground state energy. Vee is −5E1/2 = 34 eV, so H is 8E1 − 5E1/2 = −75 eV.

A tighter upper bound can be found by using a better trial wavefunction with 'tunable' parameters. Each electron can be thought to see the nuclear charge partially "shielded" by the other electron, so we can use a trial wavefunction equal with an "effective" nuclear charge Z < 2: The expectation value of H in this state is:

This is minimal for Z = 27/16 implying shielding reduces the effective charge to ~1.69. Substituting this value of Z into the expression for H yields 729E1/128 = −77.5 eV, within 2% of the experimental value, −78.975 eV.

Even closer estimations of this energy have been found using more complicated trial wave functions with more parameters. This is done in physical chemistry via variational Monte Carlo.

The Wisdom of Crowds

From Wikipedia, the free encyclopedia
https://en.wikipedia.org/wiki/The_Wisdom_of_Crowds
The Wisdom of Crowds
Cover of mass market edition by Anchor
AuthorJames Surowiecki
LanguageEnglish
PublisherDoubleday; Anchor
Publication date
2004
Publication placeUnited States
Pages336
ISBN978-0-385-50386-0
OCLC61254310
303.3/8 22
LC ClassJC328.2 .S87 2005

The Wisdom of Crowds: Why the Many Are Smarter Than the Few and How Collective Wisdom Shapes Business, Economies, Societies and Nations, published in 2004, is a book written by James Surowiecki about the aggregation of information in groups, resulting in decisions that, he argues, are often better than could have been made by any single member of the group. The book presents numerous case studies and anecdotes to illustrate its argument, and touches on several fields, primarily economics and psychology.

The opening anecdote relates Francis Galton's surprise that the crowd at a county fair accurately guessed the weight of an ox when their individual guesses were averaged (the average was closer to the ox's true butchered weight than the estimates of most crowd members).

The book relates to diverse collections of independently deciding individuals, rather than crowd psychology as traditionally understood. Its central thesis, that a diverse collection of independently deciding individuals is likely to make certain types of decisions and predictions better than individuals or even experts, draws many parallels with statistical sampling; however, there is little overt discussion of statistics in the book.

Its title is an allusion to Charles Mackay's Extraordinary Popular Delusions and the Madness of Crowds, published in 1841.

Types of crowd wisdom

Surowiecki breaks down the advantages he sees in disorganized decisions into three main types, which he classifies as

Cognition
Thinking and information processing, such as market judgment, which he argues can be much faster, more reliable, and less subject to political forces than the deliberations of experts or expert committees.
Coordination
Coordination of behavior includes optimizing the utilization of a popular bar and not colliding in moving traffic flows. The book is replete with examples from experimental economics, but this section relies more on naturally occurring experiments such as pedestrians optimizing the pavement flow or the extent of crowding in popular restaurants. He examines how common understanding within a culture allows remarkably accurate judgments about specific reactions of other members of the culture.
Cooperation
How groups of people can form networks of trust without a central system controlling their behavior or directly enforcing their compliance. This section is especially pro free market.

Five elements required to form a wise crowd

Not all crowds (groups) are wise. Consider, for example, mobs or crazed investors in a stock market bubble. According to Surowiecki, these key criteria separate wise crowds from irrational ones:

Criteria Description
Diversity of opinion Each person should have private information even if it is just an eccentric interpretation of the known facts. (Chapter 2)
Independence People's opinions are not determined by the opinions of those around them. (Chapter 3)
Decentralization People are able to specialize and draw on local knowledge. (Chapter 4)
Aggregation Some mechanism exists for turning private judgements into a collective decision. (Chapter 5)
Trust Each person trusts the collective group to be fair. (Chapter 6)

Based on Surowiecki's book, Oinas-Kukkonen captures the wisdom of crowds approach with the following eight conjectures:

  1. It is possible to describe how people in a group think as a whole.
  2. In some cases, groups are remarkably intelligent and are often smarter than the smartest people in them.
  3. The three conditions for a group to be intelligent are diversity, independence, and decentralization.
  4. The best decisions are a product of disagreement and contest.
  5. Too much communication can make the group as a whole less intelligent.
  6. Information aggregation functionality is needed.
  7. The right information needs to be delivered to the right people in the right place, at the right time, and in the right way.
  8. There is no need to chase the expert.

Failures of crowd intelligence

Surowiecki studies situations (such as rational bubbles) in which the crowd produces very bad judgment, and argues that in these types of situations their cognition or cooperation failed because (in one way or another) the members of the crowd were too conscious of the opinions of others and began to emulate each other and conform rather than think differently. Although he gives experimental details of crowds collectively swayed by a persuasive speaker, he says that the main reason that groups of people intellectually conform is that the system for making decisions has a systematic flaw.

Causes and detailed case histories of such failures include:

Extreme Description
Homogeneity Surowiecki stresses the need for diversity within a crowd to ensure enough variance in approach, thought process, and private information.
Centralization The 2003 Space Shuttle Columbia disaster, which he blames on a hierarchical NASA management bureaucracy that was totally closed to the wisdom of low-level engineers.
Division The United States Intelligence Community, the 9/11 Commission Report claims, failed to prevent the 11 September 2001 attacks partly because information held by one subdivision was not accessible by another. Surowiecki's argument is that crowds (of intelligence analysts in this case) work best when they choose for themselves what to work on and what information they need. (He cites the SARS-virus isolation as an example in which the free flow of data enabled laboratories around the world to coordinate research without a central point of control.)

The Office of the Director of National Intelligence and the CIA have created a Wikipedia-style information sharing network called Intellipedia that will help the free flow of information to prevent such failures again.

Imitation Where choices are visible and made in sequence, an "information cascade" can form in which only the first few decision makers gain anything by contemplating the choices available: once past decisions have become sufficiently informative, it pays for later decision makers to simply copy those around them. This can lead to fragile social outcomes.
Emotionality Emotional factors, such as a feeling of belonging, can lead to peer pressure, herd instinct, and in extreme cases collective hysteria.

Connection

At the 2005 O'Reilly Emerging Technology Conference Surowiecki presented a session entitled Independent Individuals and Wise Crowds, or Is It Possible to Be Too Connected?

The question for all of us is, how can you have interaction without information cascades, without losing the independence that's such a key factor in group intelligence?

He recommends:

  • Keep your ties loose.
  • Keep yourself exposed to as many diverse sources of information as possible.
  • Make groups that range across hierarchies.

Tim O'Reilly and others also discuss the success of Google, wikis, blogging, and Web 2.0 in the context of the wisdom of crowds.

Applications

Surowiecki is a strong advocate of the benefits of decision markets and regrets the failure of DARPA's controversial Policy Analysis Market to get off the ground. He points to the success of public and internal corporate markets as evidence that a collection of people with varying points of view but the same motivation (to make a good guess) can produce an accurate aggregate prediction. According to Surowiecki, the aggregate predictions have been shown to be more reliable than the output of any think tank. He advocates extensions of the existing futures markets even into areas such as terrorist activity and prediction markets within companies.

To illustrate this thesis, he says that his publisher can publish a more compelling output by relying on individual authors under one-off contracts bringing book ideas to them. In this way, they are able to tap into the wisdom of a much larger crowd than would be possible with an in-house writing team.

Will Hutton has argued that Surowiecki's analysis applies to value judgments as well as factual issues, with crowd decisions that "emerge of our own aggregated free will [being] astonishingly... decent". He concludes that "There's no better case for pluralism, diversity and democracy, along with a genuinely independent press."

Applications of the wisdom-of-crowds effect exist in three general categories: Prediction markets, Delphi methods, and extensions of the traditional opinion poll.

Prediction markets

The most common application is the prediction market, a speculative or betting market created to make verifiable predictions. Surowiecki discusses the success of prediction markets. Similar to Delphi methods but unlike opinion polls, prediction (information) markets ask questions like, "Who do you think will win the election?" and predict outcomes rather well. Answers to the question, "Who will you vote for?" are not as predictive.

Assets are cash values tied to specific outcomes (e.g., Candidate X will win the election) or parameters (e.g., Next quarter's revenue). The current market prices are interpreted as predictions of the probability of the event or the expected value of the parameter. Betfair is the world's biggest prediction exchange, with around $28 billion traded in 2007. NewsFutures is an international prediction market that generates consensus probabilities for news events. Intrade.com, which operated a person to person prediction market based in Dublin Ireland achieved very high media attention in 2012 related to the US Presidential Elections, with more than 1.5 million search references to Intrade and Intrade data. Several companies now offer enterprise class prediction marketplaces to predict project completion dates, sales, or the market potential for new ideas. A number of Web-based quasi-prediction marketplace companies have sprung up to offer predictions primarily on sporting events and stock markets but also on other topics. The principle of the prediction market is also used in project management software to let team members predict a project's "real" deadline and budget.

Delphi methods

The Delphi method is a systematic, interactive forecasting method which relies on a panel of independent experts. The carefully selected experts answer questionnaires in two or more rounds. After each round, a facilitator provides an anonymous summary of the experts' forecasts from the previous round as well as the reasons they provided for their judgments. Thus, participants are encouraged to revise their earlier answers in light of the replies of other members of the group. It is believed that during this process the range of the answers will decrease and the group will converge towards the "correct" answer. Many of the consensus forecasts have proven to be more accurate than forecasts made by individuals.

Human Swarming

Designed as an optimized method for unleashing the wisdom of crowds, this approach implements real-time feedback loops around synchronous groups of users with the goal of achieving more accurate insights from fewer numbers of users. Human Swarming (sometimes referred to as Social Swarming) is modeled after biological processes in birds, fish, and insects, and is enabled among networked users by using mediating software such as the UNU collective intelligence platform. As published by Rosenberg (2015), such real-time control systems enable groups of human participants to behave as a unified collective intelligence. When logged into the UNU platform, for example, groups of distributed users can collectively answer questions, generate ideas, and make predictions as a singular emergent entity. Early testing shows that human swarms can out-predict individuals across a variety of real-world projections.

In popular culture

Hugo-winning writer John Brunner's 1975 science fiction novel The Shockwave Rider includes an elaborate planet-wide information futures and betting pool called "Delphi" based on the Delphi method.

Illusionist Derren Brown claimed to use the 'Wisdom of Crowds' concept to explain how he correctly predicted the UK National Lottery results in September 2009. His explanation was met with criticism on-line, by people who argued that the concept was misapplied. The methodology employed was too flawed; the sample of people could not have been totally objective and free in thought, because they were gathered multiple times and socialised with each other too much; a condition Surowiecki tells us is corrosive to pure independence and the diversity of mind required (Surowiecki 2004:38). Groups thus fall into groupthink where they increasingly make decisions based on influence of each other and are thus less accurate. However, other commentators have suggested that, given the entertainment nature of the show, Brown's misapplication of the theory may have been a deliberate smokescreen to conceal his true method.

This was also shown in the television series East of Eden where a social network of roughly 10,000 individuals came up with ideas to stop missiles in a very short span of time.

Wisdom of Crowds would have a significant influence on the naming of the crowdsourcing creative company Tongal, which is an anagram for Galton, the last name of the social-scientist highlighted in the introduction to Surowiecki's book. Francis Galton recognized the ability of a crowd's averaged weight-guesses for oxen to exceed the accuracy of experts.

Criticism

In his book Embracing the Wide Sky, Daniel Tammet finds fault with this notion. Tammet points out the potential for problems in systems which have poorly defined means of pooling knowledge: Subject matter experts can be overruled and even wrongly punished by less knowledgeable persons in crowd sourced systems, citing a case of this on Wikipedia. Furthermore, Tammet mentions the assessment of the accuracy of Wikipedia as described in a study mentioned in Nature in 2005, outlining several flaws in the study's methodology which included that the study made no distinction between minor errors and large errors.

Tammet also cites the Kasparov versus the World, an online competition that pitted the brainpower of tens of thousands of online chess players choosing moves in a match against Garry Kasparov, which was won by Kasparov, not the "crowd". Although Kasparov did say, "It is the greatest game in the history of chess. The sheer number of ideas, the complexity, and the contribution it has made to chess make it the most important game ever played."

In his book You Are Not a Gadget, Jaron Lanier argues that crowd wisdom is best suited for problems that involve optimization, but ill-suited for problems that require creativity or innovation. In the online article Digital Maoism, Lanier argues that the collective is more likely to be smart only when

1. it is not defining its own questions,
2. the goodness of an answer can be evaluated by a simple result (such as a single numeric value), and
3. the information system which informs the collective is filtered by a quality control mechanism that relies on individuals to a high degree.

Lanier argues that only under those circumstances can a collective be smarter than a person. If any of these conditions are broken, the collective becomes unreliable or worse.

Iain Couzin, a professor in Princeton's Department of Ecology and Evolutionary Biology, and Albert Kao, his student, in a 2014 article, in the journal Proceedings of the Royal Society, argue that "the conventional view of the wisdom of crowds may not be informative in complex and realistic environments, and that being in small groups can maximize decision accuracy across many contexts." By "small groups," Couzin and Kao mean fewer than a dozen people. They conclude and say that “the decisions of very large groups may be highly accurate when the information used is independently sampled, but they are particularly susceptible to the negative effects of correlated information, even when only a minority of the group uses such information.”

Inequality (mathematics)

From Wikipedia, the free encyclopedia https://en.wikipedia.org/wiki/Inequality...