Brian Greene

Big Bang-like events.

vastly different.

That's right.

So when we study the equations for the production of these universes, we see in the mathematics that the other universes could have different features, different particle compositions, different masses of the particles, different forces.

Oh, I wouldn't describe it like that at all, as you might imagine.

Rather than...

view this as an incredible loss of understanding, the right way of viewing it, I think, is to recognize that certain questions that we were asking when we thought there was just one universe were the wrong questions.

Meaning what?

Well, he says here's the way to think about it.

This is how it always goes.

We've seen this before in the history of science.

Take Kepler.

And Kepler spent a long time trying to find an explanation for why the Earth is 93 million miles away from the sun.

93 million.

Kepler thought that has to be a really important number, a key to a deeper mystery.

But we now know that he was barking up the wrong tree.

Why?

There isn't just one planet.

There are many planets.

In fact, many planets around many stars.