We believe we're seeing the world just fine until it's called to our attention that we're not.

What we find is that our brains have colossal things happening in them all the time.

Asleep vision (dreaming) is perception that is not tied down to anything in the real world; waking perception is something like dreaming with a little more commitment to what's in front of you.

Every atom in your body is the same quark in different places at the same moment in time.

I spent my adult life as a scientist, and science is, essentially, the most successful approach we have to try and understand the vast mysteries around.

As we develop better technologies for probing the brain, we detect more problems.

The missing crowds make you lonely. You begin to complain about all the people you could be meeting. But no one listens or sympathizes with you, because this is precisely what you chose when you were alive.