To clarify on point 1 since I was typing early in the morning again, "you must hate exactly what I hate" and "you msut like exactly what I like" aren't actually the same statement but they're the same thought process which is "my opinions are objective facts." If you see someone espousing one, they're probably thinking the other, too.
Though I think the brain is a finite storage space so you'd probably start forgetting so much after some point it'd be like a new person transitioning in every few centuries. That'd be a good reason to keep a diary.
Well, maybe this facebook mind reading thing I've been hearing about is the first step to that.... though I have to admit I'd prefer if it weren't such an advertising and data-collection obsessed company working on it
i'm legitimately hoping for the day when that happens, my snark aside, TM2-Megatron. Imagine what could be accomplished if future generations had first hand knowledge of the thoughts and contexts of the events that shaped their ancestors', and their own, world?