We have made remarkable progress in the last hundred years, but if we want to continue, our future is in space.

I think the brain is essentially a computer and consciousness is like a computer program. It will cease to run when the computer is turned off. Theoretically, it could be re-created on a neural network, but that would be very difficult, as it would require all one's memories.

Because there is a law such as gravity, the Universe can and will create itself from nothing. Spontaneous creation is the reason there is something rather than nothing, why the Universe exists, why we exist. It is not necessary to invoke God to light the blue touch paper and set the Universe going.

Time and space are finite in extent, but they don't have any boundary or edge. They would be like the surface of the earth, but with two more dimensions.

If any one of about 40 physical qualities had more than slightly different values, life as we know it could not exist.

I think the universe was spontaneously created out of nothing, according to the laws of science. It has no beginning and no end.

Many people do not like the idea that time has a beginning, probably because it smacks of divine intervention.