Although there have been attempts at creating true simulations of intelligence, machines that can learn and respond appropriately to unbounded input, they have not, as of the time of this writing, progressed significantly far in the way of believably duplicating human interactions (although they have mastered tasks as diverse as as playing chess, competing on the television game show Jeopardy, and identifying other robots as robots). Are these major steps on the pathway, or deceptive dead ends? Could technology ever improve to the point where it could convincingly simulate, not you perhaps, but other people, in all their deep, multifaceted, and endlessly surprising soulfulness? Is true artificial intelligence, to the point that computers could believably create people, actually achievable?
The technological ability to emulate a convincing world is plausible in the not-so-distant future. We additionally know that the motivation to create one already exists, given the huge popularity of video games, and the amount of money and effort put into making them. A big difference, however, between a current-day video game and this potential game of tomorrow, is that the player of a current game knows she is playing a game. Could we really be in a game and not know it?
We all have a solipsistic experience nightly, when we sleep and dream. Each night we inhabit a universe which seems to us, convincingly at the time, to have a wealth of external people and places in it. But all of those people and places are created inside our brains solely for the benefit of the dreamer. In the modern world, however, we can place an additional, familiar experience of a solipsistic reality next to that of the dream: the single-player video game.
A couple of video games for your phone will not only keep you busy on the subway, but allow you to contemplate issues of personhood and ethics at the same time.