Ill bite for this silly question.
If I had a time machine I wouldnt deal with Bitcoin. It would be a headache especially in 2013 if you started selling large quantities. Banks would get suspicious where you got all these funds, they would think Silk Road.
The real money would be to buy lots and lots of stock options near the highs and bottoms. Basically a small $10k put option could 1000x if bought at the right time and doing the reverse at the other side. Stocks have much more liquidity and its possible to make billions easily. With Bitcoin not so easy.
Same here. I would buy Apple stock at say, .09 per share. Buy tons of it (tax deferred) and then sell what I want to live without having to work, and then save the rest for my kids.
Wouldn't need to mess with bitcoin to get rich, but I WOULD be buying bitcoin now as I sold stock (as I truly believe in bitcoin for the future).