David Kipping

Their activity could affect our existence.

And so it's hard to make inferences in that situation.

Wow.

Yeah, I mean, maybe there were.

Who knows?

There could have been all sorts of weird stuff happening before modern astronomy was able to get involved.

Yeah, I think the past is incredibly insightful.

But there's mystery.

And have you heard of the Eemian period?

Have you heard of this period in the past?

No.

So we live in the Holocene, which is an interglacial period.

And you need the interglacial period for a stable climate to have farming, agriculture,

You can't live in an ice age, right?

Because otherwise you just can't grow crops.

So about 10,000 years ago, we transitioned into this Holocene.

And then you see civilization emerge all over the world, right?

Not just in one place in the fertile crescent, but also in South America.

It's just, it seems like there was some sort of random coincidence where just civilization started, right?

And, of course, it's most likely because of the climate.