> If we do it right, we can make simple systems built from the ground up on fundamentally secure principals.

What would be an example?

From my own experience it seems easy until you actually get into the details.

Pgp is an ingredient, it’s not the recipe. You can build a lot of great things out of it, but I’m not sure why you’re attacking letting notaries use it if they want to. It’s a perfectly adequate system that requires attention to detail, just like any alternative.