Go ahead, dive inside the mind of Bill Gates. But strap in.

This image released by Netflix shows billionaire philanthropist Bill Gates in a scene from "Inside Bill's Brain: Decoding Bill Gates," streaming Sept.

This image released by Netflix shows billionaire philanthropist Bill Gates in a scene from "Inside Bill's Brain: Decoding Bill Gates," streaming Sept.

This image released by Netflix shows billionaire philanthropist Bill Gates, left, and filmmaker Davis Guggenheim from "Inside Bill's Brain: Decoding B

This image released by Netflix shows billionaire philanthropist Bill Gates, left, and filmmaker Davis Guggenheim from "Inside Bill's Brain: Decoding B

This image released by Netflix shows billionaire philanthropist Bill Gates, left, and filmmaker Davis Guggenheim from "Inside Bill's Brain: Decoding B

This image released by Netflix shows billionaire philanthropist Bill Gates, left, and filmmaker Davis Guggenheim from "Inside Bill's Brain: Decoding B

This image released by Netflix shows billionaire philanthropist Bill Gates in a scene from "Inside Bill's Brain: Decoding Bill Gates," streaming Sept.

This image released by Netflix shows billionaire philanthropist Bill Gates in a scene from "Inside Bill's Brain: Decoding Bill Gates," streaming Sept.

NEW YORK (AP) — What makes Bill Gates tick?

That's the subject of "Inside Bill's Brain," a new three-part documentary on Netflix from Academy Award-winning director Davis Guggenheim.

Each episode in the series introduces three huge global issues The Bill and Melinda Gates Foundation has tackled recently — safe sanitation technology, polio eradication and nuclear power — then switches back in time to see how Gates solved other complex issues in his life as a younger man.

After spending so much time with Gates, Guggenheim said the popular perception of him as a cold, dispassionate thinker isn't true. Gates, he found, is the first person in the family to cry at movies.