Blockchain technology would be most useful for low transaction fees and transparent finances. Once banks implement this, users will be more willing to use banks other services including investing.
Just because banks will be able to reduce costs and therefore increase their profits, I can not see any advantages for the users.
Do you really think banks will use a kind of open blockchain which can be audited for the average joes from outside?!Keep dreaming!
That's not gonna happen! They will still come up with dirty tricks, probably even better ones, to fool us.
