Lawrence Krauss is a professor in the Department of Physics at Arizona State University. His lecture entitled Life, the Universe and Nothing was recorded at the Isabel Bader Theatre in Toronto.

“The universe we live in is probably the worst of all possible universes to live in. It’ll probably end badly, but it doesn’t really matter.

People were always looking at the stars and the sky seemed static and eternal, and what we learned in the last decade or two is that our picture of the universe is changed dramatically, perhaps more in the last decade than it had in the last century, and the implications are quite significant.

One thing that we’ve learned is the stuff in the universe is actually the stuff between the stars, the stuff you can’t see, and that not only determines the present universe, but will dramatically change the future.

Scientist looked out the night sky enough in the early twentieth century, it also looked static and eternal for them, and that was the conventional wisdom in fact. The turn of the last century is that the universe is largely the same and always been the same, and would always be the same.”