As I ponder the psychological and subjective aspects of
digital identity, I find myself thinking of the identity net itself in terms of bodies, brains and minds. These biological and experiential analogies seem to me to hold the promise of valuable insights into both the similarities and the differences between the online and offline dimensions of our existence as human beings.
Let me begin with a few tentative and approximate definitions of three key aspects of "digital entities" (bear with my seemingly whimsical terminology—this abstraction will pay off royally later on):
A
digital body is any physical digital device. Digital bodies, like biological bodies, are capable of receiving and transmitting information (in various forms) from and to humans and/or other digital bodies. Digital bodies may be networked with one another (e.g. across the internet) to create larger digital organisms. Each digital body has a digital brain (or sometimes brains).
A
digital brain is the aspect of a digital body (device) that stores and processes data (the device's memory store[s], microchips etc.). Digital brains give rise (individually or in combination) to digital minds.
A
digital mind is a virtual and subjective entity
that is defined by its interactive functionality rather than its physical substance or location. Unlike biological entities' minds, digital minds may arise not only from single digital brains but also from multiple, networked digital brains (e.g. Google's grid computing). Digital minds are not conscious or self-willed like biological minds (
HAL 9000 has so far remained firmly in the realms of fiction), but rather act as cyber-extensions of human minds.
Two striking differences (though of course not the only important ones) between biological and digital entities, then, are:
1) Unlike a biological body, a digital body can be physically integrated with multiple other digital bodies, forming a "super body" of individual bodies.
2) Unlike a biologically-based mind, a single digital mind can emerge from multiple digital brains (although it is interesting to note the nice analogy, at a finer structural level, of modularly-networked digital brains to the modular construction of the human brain itself) .
Both (1) and (2) point to a potentially huge resource-sharing advantage for digital entities over biological ones, in terms of both processing power and efficiency (one digital brain can be utilised by multiple digital minds).
Yet this resource-sharing advantage only exists in the context of a mutual willingness to co-operate (which in turn is often predicated on mutual authentication) and technological compatability (e.g. of connection and data exchange protocols, data structures and so on). As digital organisms have no will or consciousness of their own, the onus falls on us humans to negotiate and create the trust and shared machine language necessary for networked resource sharing.
Aside:
Hmm... so digital super-entities can only emerge through trust and shared language, huh—sounds a bit like the conditions necessary for the emergence of human community. Who'd have thought it? ; )
So far, so familiar—all this above is just to recapitulate key themes of the ongoing Digital identity debate such as modularity, emergence, mutual authentication and shared protocols and languages. But when we begin to build on this platform of understanding, the analogy of digital and sentient biological entities begins to become quite informative. For the sake of convenience, let's be more specific and deal with a sub-set of sentient biological entities: humans.
Let's take belief systems, for example. Each human's mind* maintains a belief system or ontology of their world, arising from a combination of innate and learnt cognitive structures in their brain. This ontology determines the nature of both the person's perceptions and their actions; conversely, the person's interactions with others and their world provides a feedback loop that ongoingly modifies their ontology.
Digital brains and minds can be seen to function analogously with regard to ontologies. Each digital mind also maintains an ontology: this ontology arises from the associated digital brain's store (I use singular forms of "brain" and "store" for simplicity's sake, but they could equally be plural) of structured data which it mediates with data-processing algorithms. The data store is (loosely) analogous to human memory, and the algorithms to cognitive mechanisms.
And from this perspective, the whole topic of digital identity (as copiously discussed here and elsewhere in the blogosphere) looks rather different. We can simply say things like:
Digital minds have opinions of other digital entities' identity**. Those opinions are in turn shaped by the human being(s) who control the operation of the digital entity, which in effect acts as a cyber-extension of the human(s)'s mind(s).
A digital entity perceives a human user interacting with it through its body (e.g. typing on a keyboard), cognizes in its brain the nature of the interaction (according to its ontology—e.g. this is someone I already know) and then can make its mind up about whether or not to let the human user access certain data and functions.
It's easy to explore, in these metaphorical terms, how social patterns in offline human society could be emulated with profit on the identity net. For example:
1) Digital entities can build on their individual relationships with other digital entities
through triangular "mutual friend" trusted introductions.
2) Data discovery can follow a similar pattern ("phone a friend")—entity A asks entity B for information of a particular kind, and entity B returns its own knowledge plus that of entity C, who is the best authority on the subject that entity B knows. Process evolves iteratively.
And, in a cursory attempt to tie in various other threads from my ponderings of the last few months:
The "ontological distance" which I discussed as an expression of identity
in a previous post can be understood here as a measure of trust in the reliability and quality of the information a given entity provides (in the context of vouching for another entity or providing a certain kind of information).
The universe that digital minds inhabit is
a virtual space with (n-1) dimensions.
Finally, technology that allows the interoperation of diverse ontologies for digital entities will, I think, promote the
organically-integrated phase-behaviours that I discussed at length in a previous essay. But we'll just have to wait and see about that I guess, as there remains a little matter of actually
building this stuff! : )
*I distinguish between biological brain and mind for practical purposes, in order to be able to sustain a discussion that embraces both the objective facts and subjective experience of biological sentience.
**A digital mind cannot relate directly to a non-digital entity, as the digital mind's "body" digitises all input to its brain. So even if a human being is typing input on a keyboard, the mind is relating to a set of ones and zeros.
Technorati Tags: brain, identity, mind