I made some math with bitcoin here my thoughts:
MAX circulation supply: 21,000,000 pcs (the max bitcoin can be create)
Circulation supply / market cap = price.
Price * Circulation supply = market cap .
1,000,000 * 21,000,000 = 210,000,000,000,000 $ market cap haha
so if bitcoin will reach 1M all the money in the world will be in there.