[mandmandam]

> As a civilisation we have already solved the problem of trust in a much more efficient way.

Lol. Yeah, trust in the bankers is at a civilization high /s

In any case, block-lattice crypto is at least an order of magnitude more efficient than Mastercard et al. And it can be genuinely decentralized.

BTC and Ether were the first of their kind - but not the best, and certainly not the most efficient. Yet they get used as the bar for comparison to traditional banking and money, by people who really ought to know better.