The Economy Could Double Every Few Days, Right?

i have been doing a thing that was suggested long, long ago by robin hanson. One of the things he said is if the economy multiplies just huge amounts it could literally double every few days. i put some money into bitcoin because it looks like maybe bitcoin will be used in future economy. I haven't touched any other coins. They all seem like scams. And then, you know, i put a bunch of money in the stock market, not a huge amount, an order of magnitude more than i have in bit coin. and world wide stocks in case china does end up taking over everything. Ah, and then put some moneyinto real estate, which i think