because problems in the bank’s software are the bank’s responsibility. If they lose my money, it’s their responsibility to get it back. Cryptocurrencies are the exact opposite, by design. If you’re fucked, you’ee fucked. unless of course half the participants decide to fork, half don’t and you end up with two “currencies” out of thin air.
alas, we’re still a couple of decaes a way from being fast enough to compile it in the first place