I always wondered if I went back in time and bought 1,000,000 coins, what would happen and how it would change. Maybe btc would just fail altogether.
how about if ya go back and just started mining earlier? like in 2009 when CPU was the way to go... then "oh look, it's BFL... well, i'll ignore that..." and "mt gox? hmm... maybe i'll stay away..." and so on. same events happen, just you choose the "not screwed" side.
course, moot point, since it requires time travel...
personally, i just wish i hadn't sold what i at one point had. or that i'd worked out my shit and kept distributing asic block eruptors... i bet canaryinthemine made bank...