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?
It is very possible that a genius may hack majority of bitcoin. But that act alon will make all his effort in vain in hacking the majority of bitcoin. Reason is that, bitcoin will automatically fall in price until to the point of being worthles. Support will be taken away because it shows that bitcoin is a failure.
If the whole world adapts and accepts bitcoin as a payment, government intervention would inevitable. This means that security and regularity will be more guarded and secured and potential threats like these would always be taken into consideration. Also if that where to happen, I can see that the price of bitcoins will drop due to its nature being hackable. The only threat that I see today is the high volatility of the price but that is to be expected.