When I work with experimental gadgets, like new variations on virtual reality, in a lab environment, I am always reminded of how small changes in the details of a digital design can have profound unforeseen effects on the experiences of the humans who are playing with it. The slightest change in something as seemingly trivial as the use of a button can sometimes completely alter behavior patterns.

For instance, Stanford University researcher Jeremy Bailenson has demonstrated that changing the height of one's avatar in immersive virtual reality transforms self-esteem and social self-perception. Technologies are extensions of ourselves, and, like the avatars in Jeremy's lab, our identities can be shifted by the quirks of gadgets. It is impossible to work with information technology without also engaging in social engineering.

Jaron Lanier