My expectations were reduced to zero when I was 21. Everything since then has been a bonus.

Time travel was once considered scientific heresy, and I used to avoid talking about it for fear of being labelled a 'crank.'

We are entering an increasingly dangerous period of our history. But I'm an optimist.

It surprises me how disinterested we are today about things like physics, space, the universe and philosophy of our existence, our purpose, our final destination. Its a crazy world out there. Be curious.

Science will win because it works.

A zero-gravity flight is a first step toward space travel.

As we shall see, the concept of time has no meaning before the beginning of the universe. This was first pointed out by St. Augustine. When asked: What did God do before he created the universe? Augustine didn't reply: He was preparing Hell for people who asked such questions. Instead, he said that time was a property of the universe that God created, and that time did not exist before the beginning of the universe.