I was at a public lecture made by a team of exoplanet-studying astronomers and astrophysicists whose intent was to rule in or rule out life on other planets as they explored them.

After a couple of drinks, I asked what I thought would be a trivial question for them, thinking myself a fool: how do you define life?

They didn’t know. Not even the professor who was heading up this team of grad students. They just didn’t know.

You don’t go looking for what you don’t know how to define, right?

I mean: sure, science is all about curiosity, too.

But science is also knowing when you got to where you were heading.

And they didn’t know.

Resident of Frogpondia.

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