Preview Mode Links will not work in preview mode

Astral Codex Ten Podcast

Mar 7, 2020


Imagine an kid in school first hearing about germ theory. The conversation might go something like this:

Teacher: Many diseases like the common cold are spread by germs, when one infected person contacts another.

Student: But I got a cold a few weeks ago, and I never touch anyone except my family members. And none of them were sick.

Teacher: You don’t need to actually touch someone. Sometimes it can spread through mucus droplets in the air.

Student: And one time I was camping in the woods for a month, and then I got a cold, even though I hadn’t been around anybody.

Teacher: If it was spring, you might have gotten allergies. Allergies can feel a lot like a cold, but they aren’t spread by germs.

Student: It was fall.