Mark Manson

So the first spectrum is introversion, extroversion.

The second one is intuition versus sensing.

The third one is thinking versus feeling.

And then she just kind of made up the fourth, which is perceiving versus judging.

It's funny that that's the one she made up because that's the one I find that like nobody knows what it means.

What it means or what to do with it.

Yeah.

Yeah, exactly.

I guess perceiving is kind of low conscientiousness.

You're like spontaneous.

You don't plan things and judging.

Apparently, you're very conscientious.

You're very rigid, structured.

It's judicious, yeah.

Now, this eventually caught on among government administrations.

They decided, well, we need to use something.

So why not this?

So they used it throughout the 1940s.

And by the 1950s, it had actually been codified by some governmental agencies as a legitimate test to give to people to measure their personality, their natural talents, their natural skill sets.

By the 1960s, corporate consultant groups started applying the MBTI to their