Comment by al452

You miss the point about trust. The trust issue that blockchain addresses for big banks is not "I'm worried you're a scam that will disappear with all my money". It's "I'm worried that you've not got every single number exactly right and there will diaagreements". Hence it takes 2-3 days in the US to settle a simple financial trade, to allow for multiple batch reconciliations to verify that the information that each party holds about the trade matches up. Using a shared, distributed database to store all this information, instead of every party keeping their own copy, has the potential for colossal efficiency gains. That's why big institutions are interested in blockchain.