I was just thinking that since Bitcoins is 100% on the internet, what would happen if the whole world adopts it and 20M bitcoins gets stolen by a genius similar to what happened to Bitfinex?
If they steal 20M Bitcoins then you're looking at basically all accessible Bitcoins being stolen, meaning that there will be next to no demand if all of that gets stolen and their Bitcoins will be worth a lot less than they would be should the market have been moving normally. That's assuming that people would even buy them again if they were stolen and they simply wouldn't use a copy of the blockchain from just before the theft and fork back to that.