Sean Carroll

But if it started collapsing, we expect that entropy would still be going up toward the future.

And that's part of the actual answer to the question, which is that you have to distinguish between time and

And the arrow of time, time could exist without an arrow.

And the fact that entropy provides time with an arrow doesn't mean that it explains or accounts for time itself.

Like here in this room where I am, if I take my coffee mug and I let it go, it falls to the ground.

It falls down.

It doesn't fall up.

There's an arrow of space here in the room.

There's a clear distinction between up and down.

But it's because the earth is beneath my feet.

It's not because the earth is creating space.

The earth is just distinguishing between two different directions in space up and down.

That's what entropy does for the universe.

I like that.

That's great.

Do you think eggs are going to start unscrambling just because the universe starts shrinking?

Yes.

Please don't think that Neil deGrasse Tyson.

Okay.

No, that makes sense.