Elon Musk is on record that he makes decisions using the same technique as Jeff Bezos.

I found YouTube videos of them explaining it.

A thread on thinking more clearly:

This thread is about mental models.

Yes, Twitter has enough of these.

BUT, people never answer the question:

How do I use mental models for everyday decisions? How do I put them into practice?

Mental models are frameworks for thinking.

They simplify complex situations so you can reason through them easily.

They help you make good, long-term decisions without needing to know everything about a situation.

Your hunter-gatherer brain is not wired to use the best model for every decision.

However, in every generation, a few humans manage to rewire their biology:

They force themselves to think in models constantly.

Elon Musk and Jeff Bezos appear to be two of those people. They're on record about this.