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 was going to engineering school but fell in love with physics.

The Internet has turned the world into one gigantic linked community, capable of instantly sharing vast amounts of incorrect information.

If you want to buy $10 of Ethereum and poke around with smart contracts, I encourage that. But use it as a technology, not as an investment, unless you know what you're doing.

People who take time out to dole out opinion on social media are negative people.