Science isn't just about solving this or that puzzle. It's about understanding how the world works: the whole world from the vastness of the cosmos to the particularity of an individual human life. It's worth thinking about how all the different ways we have to talk about the world manage to fit together.

A full understanding of what happens in our everyday lives needs to take into account what happened at the Big Bang. And not only is that intrinsically interesting and just kind of cool to think about, but it's also a mystery that is not given much attention by working scientists; it's a little bit underappreciated.

The idea that time is an illusion is an old one, predating any Times Square ball drop or champagne celebrations. It reaches back to the days of Heraclitus and Parmenides, pre-Socratic thinkers who are staples of introductory philosophy courses.

The particular aspect of time that I'm interested in is the arrow of time: the fact that the past is different from the future. We remember the past but we don't remember the future. There are irreversible processes. There are things that happen, like you turn an egg into an omelet, but you can't turn an omelet into an egg.

Who knows, I have always lived one day at a time. Probably more adventure and excitement.

I get to travel so much. I get to see so many different parts of the world. I get to meet new people every day. I experience new cultures, meet new fans from different countries. I get to perform for them, too.

I suppose women are attracted to the bad-boy image sometimes because it's fun to have an adventure. It's like eating junk food... it's fun at the time, but ultimately not the best choice.

I used to sail a lot in all kinds of weather, competing on small sailboats in the ocean. And I travel a lot in Iceland on horses every summer, through the wild areas where there's no inhabitants and there are volcanoes.