A sufficiently detailed record of a person's behavior could be used to fully reconstruct their psychology. This might constitute a form of immortality, but even if it doesn't, complete knowledge of the past would be a beautiful thing to have, it would make the future richer to know its past and to be able to bring back faithful replicas of the people who built it.
So this is an important question. To produce sufficiently detailed records... is that already happening by default? Is the ad industry already keeping all of that stuff? Will it all eventually make its way to light?
I've been assuming it's happening. Storage is cheap. The data has lots of buyers.
If not, then I'm going to need to start recording and backing stuff up more thoroughly.
Well, for one did you ever notice how people act differently in different situations? (for example among family, friends, work, acquaintances at the gym, or online) If you limit yourself to a single situation, there is not any person on earth that you could 'reconstruct' sufficiently well.