Several points that this episode covers:
- Bill Gates’ plans for sanitation
- Bill Gates’ relationships with his mom, and sisters
What stood out to me during the episode:

Figure 1 shows a “modern sanitation system”. After waste gets flushed down the toilet, they arrive at treatment center, and go through the systems shown in Figure 1.


The worst moment in his life was when his mom died.
And, presumably in this photo he was thinking about the story of how he had been pulled over by the police after driving home from what I assume was his mother’s funeral while telling said story.
He mentioned in this episode, as well as, in episode two about how his mom greatly impacted how he approached his relationships, his work, and his outlook on life.