Travel at faster than the speed of light certainly can have dramatic implications that are difficult to understand, such as time travel.

You might find it hard to imagine gravity as a weak force, but consider that a small magnet can hold up a paper clip, even though the entire earth is pulling down on it.

One of the nice things about math and science is it’s obvious, you get the answer or you don’t get the answer.

Basically, I wasn't properly socialized, so it made sense to do physics.

Speculation and the exploration of ideas beyond what we know with certainty are what lead to progress.

I did not set out to explain the extinction of the dinosaurs. I'm a particle physicist, and I was actually thinking about dark matter along with some collaborators.

Although I was first drawn to math and science by the certainty they promised, today I find the unanswered questions and the unexpected connections at least as attractive.