Instead of using new technologies to preserve for ready discovery material that might in the past never have been stored, or deleting everything as soon as possible, we can develop systems that place sensitive information beyond reach until a specified amount of time has passed or other conditions are met.

I'm interested in helping secure the PC - we need innovation here. It's not just hug your PC, hate the iPhone. In fact I don't even hate the iPhone; I think it's really cool. I just don't want it to be the center of the ecosystem along with the Web 2.0 apps.

The last refuge of privacy cannot be placed solely in law or technology. It must repose in both, and a thoughtful combination of the two can help us thread a path between having all our secrets trivially discoverable and preserving nothing for our later selves for fear of that discovery.

Attacks on Internet sites and infrastructure, and the compromise of secure information, pose a particularly tricky problem because it is usually impossible to trace an attack back to its instigator.

The critical thing in developing software is not the program, it's the design. It is translating understanding of user needs into something that can be realized as a computer program.

Internet users should be able to choose where to go online and which applications to use. Comcast, say, shouldn't be allowed to block Skype just because it could siphon the communications giant's telephone business.

I do think some digital currency will end up being the reserve currency of the world. I see a path where that's going to happen.

I have this famous joke that I use: Why was God able to create Heaven and Earth in seven days and seven nights? Because he didn't have installed customers and legacy technology to worry about.