I've seen children's eyes light up when I tell them about black holes and the Big Bang.

Writing for the stage is different from writing for a book. You want to write in a way that an actor has material to work with, writing in the first person not the third person, and pulling out the dramatic elements in a bigger way for a stage presentation.

If the theory turns out to be right, that will be tremendously thick and tasty icing on the cake.

The boldness of asking deep questions may require unforeseen flexibility if we are to accept the answers.

When you drive your car, E = mc2 is at work. As the engine burns gasoline to produce energy in the form of motion, it does so by converting some of the gasoline's mass into energy, in accord with Einstein's formula.

That is, you can have nothingness, absolute nothingness for maybe a tiny fraction of a second, if a second can be defined in that arena, but then it falls apart into a something and an anti-something. And that something is then what we call the universe. But can we really understand that or put rigorous mathematics or testable experiments against that? Not yet. So one of the big holy grail of physics is to understand why there is something rather than nothing.

Free will is the sensation of making a choice. The sensation is real, but the choice seems illusory. Laws of physics determine the future.