Sten Odenwald

And the fact that we live in a universe where entropy is lower when the universe was younger and higher as the universe gets older.

It's this sort of direction in which

things erode you lose information things are crystal clear when they're formed but then as they age which is a time thing they become more scattered and eventually decay into dust and that's the increase of entropy over time and we live in a universe where ever since the big bang the big bang was a very very low entropy state and today the the universe is in a very very high entropy state so the direction

seems to be in the same direction as what we call, you know, the past to the present to the future.

It's one of the arrows of time, as astronomers call it.

Well, actually, we do have limited time travel going into the past, but it's strictly our recollection of, you know, things that have happened to us as individuals.

I mean, I can I can go back to when I was five years old and remember birthday party with, you know, quite good clarity.

And everybody has that experience of being able to time travel into their own personal past.

So we have access to the past.

We also have access to the deep past because there are these curious people called archaeologists and historians, and they seem to have a logical way of organizing things that they find today into a pattern that stretches back into human history.

So we can recover past in the human scale of time.

And astronomers, we do that with...

Anytime we study a distant galaxy, well, that's the light from it when it was 150 million years younger sort of a thing.

And so we time travel just by looking at things in the sky.

So the future is a haze of quantum probabilities and possibilities.

that allows free will the past it's already happened it's like that hologram you're talking about and you can't travel into the past any more than you can travel into a photograph in your photo album or into a hologram those things have happened they're gone and the only thing that we have today is records of what they were like in the present moment as an archaeological evidence

Yeah, that's the theory called, well, it's called eternalism.

And basically, it says what we call space and time or space-time.

You can think of it as like a watermelon.

You know, the entirety of the evolution of the universe, past, present, to future, is like the volume of that watermelon.