We are living through a remarkably privileged era when certain deep truths about the cosmos are still within reach of the human spirit of exploration.

The revelation we've come to is that we can trust our memories of a past with lower, not higher, entropy only if the big bang - the process, event, or happening that brought the universe into existence - started off the universe in an extraordinarily special, highly ordered state of low entropy.

Physics grapples with the largest questions the universe presents. Where did the totality of reality come from? Did time have a beginning?

We are living through a remarkably privileged era when certain deep truths about the cosmos are still within reach of the human spirit of exploration.

When I give this talk to a physics audience, I remove the quotes from my 'Theorem'.

Free will is the sensation of making a choice. The sensation is real, but the choice seems illusory. Laws of physics determine the future.

Experimental evidence is the final arbiter of right and wrong.