I would also recommend against keeping assets as gold in your basement. > 3/5 multisig with collaborative custody would likely already be at least as safe as d

I would also recommend against keeping assets as gold in your basement. > 3/5 multisig with collaborative custody would likely already be at least as safe as dollar checking accounts. I think that's off by orders of magnitude. If the whole US did this then I'd expect thousands to screw it up every year. "Just don't make any mistake, ever" doesn't scale. Not to more people, and not to any one person, given enough time. It's like running a yellow light (and the occasional red, when you thought it'd be yellow a bit longer). You can go your entire life never being in an accident. But there are accidents every day because people run yellow lights.