I didn't know my true self until this very conversation.

I'm Angela Duckworth.

I'm Stephen Dubner.

And you're listening to No Stupid Questions.

Today on the show, we have cow milk and goat milk.

Why not take milk?

They're smart, skittish, suspicious, and paranoid.

It sounds like a good description of a University of Chicago economist.

Also, what's a food that seems gross to most people, but you find delicious?

I think a lot of the foods that I like are disgusting to many people.

Stephen, we have an email that is about a really interesting question.

I'm going to read it to you.

Please.

Hi, guys.

This might imperil your no stupid questions theory, but why don't humans drink pig milk or consume pig milk products?

Is that too stupid a question?

The email goes on, camels, cows, goats, yak, moose, sheep, buffalo, reindeer, wherever a sizable mammal has been domesticated for food, it seems that some group of humans has incorporated its dairy into their diet.

Why not pigs? We've got heaps of them. Why is nobody milking them? Curiously yours. And then I can't tell you the name because the PS says,

I would like to remain anonymous for purposes of embarrassment.

Dear anonymous because of potential embarrassment, I don't think that's at all a stupid question.

I mean, this may say more about me than about this anonymous listener.

I like this question because it's taking something that most people probably have never noticed

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