"gigantic shared supercomputer", for me this is the best definition I have found for BTC since I got into crypto. Even with this approach it is hard to explain to older people, because they are used to have physical money (which is a piece of paper/or metal that is worth nothing if there is no global acceptance).

Proof of Work (PoW) is criticized but you can´t criticize it if you then think that BTC has "no value". It is contradictory...