I think the #1 reason blockchain doesn't work is very simple - the technology is broken beyond fixability. This article is two years old, but the same variations of these excuses always come up when the crypto ideologues are grilled on why their utopiaic vision hasn't come about, for all of blockchain's existence. Blockchain is awful for most things compared to a centralized or distributed database: it is inefficient…
This is the typical argument on a very technical board such as HN where blockchain is synonymous with a specific implementation. But that's an outdated way to think about blockchains. Yes, Bitcoin's implementation is a huge resource hog and slow. But for most newer projects "blockchain" just means an auditable trail of state changes. Whether you implement this with the shiniest newest db paradigm or some simple SQL d…
Doubtful, because ownership only makes sense in a context of scarcity whereas digital assets are in infinite supply.