Another random thing I do is the search for extraterrestrial intelligence, or SETI. And you may be familiar with the movie 'Contact,' which sort of popularized that. It turns out there are real people who go out and search for extraterrestrials in a very scientific way.

Many of the things the slow food people honor were innovations within historical times. Somebody had to be the first European to eat a tomato.

Elections, for their part, are typically popularity contests rather than measures of candidates' relative competency or effectiveness. Imagine if scientific truth were determined according to which scientist was most popular. To be successful, scientists would have to be charismatic and attractive - and human knowledge would suffer terribly.

Most estimates of the mortality risk posed by asteroid impacts put it at about the same risk as flying in a commercial airliner. However, you have to remember that this is like the entire human race riding the plane - it is one of the few risks that really could wipe us all out.

No CEO ever says, 'Damnit, we need to increase research!' I want to encourage them to do that.

Politicians don't like to face unpleasant realities. In truth, nobody does, but as individuals, we have no choice; if we neglect to plan ahead, we are held accountable. Fail to meet your responsibilities at work, and you get fired. Ignore your car's gas gauge, and you get stranded.

If people don't get paid for their inventions, that's not a good thing. In the case of many patents, there are people who aren't in a position to take them to the next level. If you don't enforce your rights, no one is going to enforce them for you.