In thinking about nanotechnology today, what's most important is understanding where it leads, what nanotechnology will look like after we reach the assembler breakthrough.

You can find academic and industrial groups doing some relevant work, but there isn't a focus on building complex molecular systems. In that respect, Japan is first, Europe is second, and we're third.

My work at MIT had focused on what we could build in space once we had inexpensive space transportation and industrial facilities in orbit. And this led to various sorts of work in space development.

It's a lot easier to see, at least in some cases, what the long-term limits of the possible will be, because they depend on natural law. But it's much harder to see just what path we will follow in heading toward those limits.

I spent my whole career in the technology business, and I was convinced of the importance, at a grand scale, of the development of global connectivity.

While everyone's purpose may be different, with social media we all have that platform to create the change we want to see in the world, and I spend a lot of time encouraging others to step up and use theirs.

The GAO just released a report that said 22 percent of federal programs fail to meet their objectives. The truth is we don't know how taxpayer money is spent in Washington, D.C., which is why I think we ought to put every agency budget up on the Internet for everyone to see.

In social media, people cannot build big followings organically unless what they are putting out to the world has value.