Bitcoin is a system where you can have reasonably strong trust in the ledger and absolutely no trust in any other part of the market at all. It's a demonstration in practise that pure unregulated trade in the digital equivalent of used unmarked bills leads to a broken market where literally everything is a scam, crime pays, and meaningful business cannot be transacted.

Its value is being propped up beyond this technical tinkering, by poorly informed optimism, ideological dreamers and a lot of people hoping to make hay while the sun shines, sometimes by knifing you first. It is going to bust all the way down to $0 and probably get internationally banned as an attractive nuisance.