When I hear of Schrödinger's cat, I reach for my pistol.

If the total energy of the universe must always remain zero, and it costs energy to create a body, how can a whole universe be created from nothing?

If it [the universe] was expanding fairly slowly, the force of gravity would cause it eventually to stop expanding and then to start contracting. However, if it was expanding at more than a certain critical rate, gravity would never be strong enough to stop it, and the universe would continue to expand forever.

The progress of the human race in understanding the universe has established a small corner of order in an increasingly disordered universe.

If the rate of expansion one second after the Big Bang had been smaller by even one part in a hundred thousand million million, it would have recollapsed before it reached its present size. On the other hand, if it had been greater by a part in a million, the universe would have expanded too rapidly for stars and planets to form.

Even if there is only one possible unified theory, it is just a set of rules and equations. What is it that breathes fire into the equations and makes a universe for them to describe?

I have to speak through a computer... in my mind, I am free. Free to explore the universe and ask the big questions...