>the global currency of the future, that they need to buy some, and that he’s the man to safeguard it. Looks like in the future people hoard currency instead of spending and investing it then. That ought to be interesting. It also demonstrates the costs associated with non-reversible transactions, these vaults aren't storing gold ingots or priceless artifacts, just private keys. Banks around the world don't need to w…
One could do multi-signature wallets with Bitcoin. So, for example, there could be three keys: one with you, one with your significant other, and one with a third party custodian, and it'd take, say, 2 out of 3 signatures to spend out of the wallet. It doesn't change the bearer nature of Bitcoin, which, some would argue, is a feature.