In the late 2000s, I met someone on the bus who told me about bitcoin. I didn't know what the fuck he was talking about. Distributed ledger? Mining for digital currency by solving puzzles? I thought it might be legit, but there was no was I would be able to explain it to my girlfriend, so I should just forget about it.

Not listening to that crazy dude on the bus was the biggest mistake of my life. I still think about that day everytime I look at the price of bitcoin. He was young, and he definitely didn't look rich. I couldn't understand why anyone would want to do that. But he was right.