Sherry Turkle shows the reader of  “Identity In the Age of the Internet” how drastically the use of computers has changed.  She points out that ten to fifteen years ago computers were used mostly by programmers for calculations.  Everything on the computer was cut and dried.  Almost everyone saw the computer “in terms of centralized structures and programmed rules, now [they see it as] complex and decentering.” (p. 349)  People wanted to explain how the world worked by “unifying pictures and analyzed complicated thing by breaking them down into simpler parts.  The modernist computational aesthetic promised to explain and unpack, to reduce and clarify.” (p.347)  Turkle makes it clear that the computer is not used for this anymore.  She points out that, “. . . we are moving from a modernist culture of calculation toward a postmodernist culture of simulation.”  (p. 349)  Many people, not just programmers, use computers today in everyday life.   These people use simulation to go about their everyday lives, but it is not something that can be completely understood.  Years ago when things were cut and dried, people understood what their computers were doing, now most people have no idea what is happening.  Turkle points out that this is not always a bad thing.  She states that,
 
 
Simulation are “opaque,” that is, too complex to be completely analyzed that is not necessarily a problem.  After all these theorists say, our brains are opaque to us, but this has never prevented them from functioning perfectly well as minds. (p.349)
 
 One of the products that makes simulation so easy to understand is the Macintosh iconic style.  This style gives people an “understanding that depended on getting to know a computer through interacting with it, as one might get to know a person or explore a town.” (p. 352)