I'm not sure a crash will look as expected. People currently holding the crypto-assets aren't in any rush to liquidate to pennies on the dollars they spent, and there can and has been a long delay before the rallying drums get new money and excitement pumped into it to make the "$100" cost something someone is willing to pay. They buy, the value goes up some, perhaps they sell some to realize they can make a return - it wets their appetite, and they pump more money into it - whether $1000 or $100mm. It's very dangerous for society because it could actually work