Listening to (and worse yet, buying into) whatever imaginary world philosophers happen to think we're living in at the moment, is a damn fine way to wind up with a very real shotgun in one's mouth.
I for one am entirely too busy to bother with this sort of (if a tree falls/chicken or egg) philosophical twaddle.
Way too true

.
I like to think about philosphical stuff, and other moral quandrys, but in the case such as this, i've thought about it, and decided to occupy my time with other things. There are several ways to take this topic, most of which makes it more sense to not believe it.
For one, the amount of computing would be so bizarrely huge that it wouldn't be possible*. You could program trends into "people", but there are so many abnormalitys that the sheer amount of "program" for even a neighborhood would require such tremendous effort that it would be unweildy. Take into account that any creature/race to own such a computer would have to take the time to devolp it much like ourselves, I doubt they would survive long enough to devolp a computer to simulate to such a scale and of such complexity, I don't think we will ever (note people of the future; don't quote me on this

) create a computer and program of such magnitude before the sun goes.
*(keep in mind each "person" could have a infinite amount of variables, and even a gram of dirt would have a huge amount of information)
Another thought; any and all programs have glitches, what of the human or world program?, there are abnormalitys, sure, but nothing to the extent of a computer glitch...a abnormality is an explainable mistake, or something like that, however, a glitch would be clearly evident by a large group of people...no program runs perfectly all the time. To avoid hardware failures, parallel systems could process a wordly program, however, this goes back into point one of a impossible computer. I don't count ufo sightings, etc. as a glitch...a glitch would be clearly evident, through whatever means a large mainframe could show. (blue screen of death perhaps?

)
I much perfer the "so what" approuch....if you are a program, then you are doing pretty well for yourself, especially being so unique in your life, the ultimate A.I., human.
also keep in mind this theory can be only recent, as computing, and the dea of it, has only come about in the last 100 years or so.