Bitcoin does have a few disadvantages. Bitcoin is not interstellar. You couldn't trade between a colony on Mars. Bitcoin is not fungible, but it is very verifiable. There is no guarantee that there will still be an incentive to mine Bitcoin after the year 2140. Ironically, the Lightning Network further undermines the theory that the Bitcoin network would be funded by transactions. It is effectively an experiment - but until the experiment is (falsified or confirmed), there is only one direction, numbers go up. Like a financial black hole, because it's actually limited to 21 million, but it's tied to earth.

Greetings from a GenX'er