Pizza Day is a day of regret. We all know the story. Laszlo Hanyecz buys two Papa John's pizzas and some lucky guy got 10,000 BTC on this day 12 years ago. The story is like that of Peter Minuit buying Manhattan Island for $24. We can hardly believe that such a thing was possible given its value today. The story has a lot of interesting angles. It was the first real-world good or service purchased with bitcoin. It established bitcoin's price, since the two pizzas cost about $41, one...