Mark Manson

Fortune 100 clients.

And by the 1980s, it was I think it was 89 out of the top 100 companies in the world had administered the MBTI to their entire workforce.

This is where you get all these theories of like certain MBTI types like work better together and some are, you know, better at certain managerial positions and some MBTI types should date each other and some shouldn't date each other.

So all these like harebrained theories going on.

None of it was validated.

None of it replicated any sort of empirical study.

It was all spread simply through the expediency of the corporate world.

Today, it's estimated that 2 million people per year take the MBTI in a corporate setting.

My degree is in international business, so I took a bunch of business courses.

I remember in our organizational behavior course,

Half of the entire course was spent on MBTI.

Oh, really?

Yes.

Oh, wow.

Like we spent, everybody took the test and like, there were like long discussions of like how you should organize a team around different MBTI types, how certain MBTI types worked well together.

Some didn't.

It was all just like fucking pseudoscience.

It's just reason number 250 to not study business in university.

So this test has withstood, at this point, almost 100 years of popularity and is taken by millions, tens of millions of people around the world.

It is taken seriously by some of the richest corporations in the world.