Jonathan Haidt

looked at lifespan and said there are actually five stages.

So first is childhood up zero to age nine.

During this time, your brain is not very efficient, but it's really growing and, you know, it's growing and changing, but it's not really efficient.

Nine to 32 is considered adolescence.

And so, you know, 32 is when adolescence ends, apparently, according to this new research.

And then the next stage is from 33 to, I think, 63.

66 is like adulthood.

Things are very stable.

Learning is stable and, you know, it's efficient and things are doing well.

We're productive.

Yeah, 66 to about 83 is early aging.

And so that's when you see some of the age-related changes happening.

And then 83 plus is late aging.

So the kind of main finding was that, you know, it was all over the news.

It was like adolescence goes until 32.

You met with Macron, right?

Bravo.

As a mother, that was the first thing I said to you.

The first thing I said to you was thank you, as a mom, for changing my family's life.

I think there's one more data point to add in that 2014 was the year that things really, it was the tipping point, like you say.