The Constant: A History of Getting Things Wrong · Mark Chrisler

By Heart, Part 1

July 29, 2025·50 min·4 clips
Geneticist Charles Epstein discovered the protein mechanism behind Down syndrome, then a Unabomber bomb arrived at his home.
Memory starts as a problem here, not a party trick.

As heard by us

A sharp look at how memory became measurable, with just enough wit to keep the science from feeling sealed off.

The episode treats memory science like a real problem that had to be worked out slowly, not a neat idea handed down all at once. It follows Ebbinghaus through nonsense syllables, repeated tests, and a kind of stubborn patience that makes the whole thing feel more human than…

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Why you'd press play

Your memory is unreliable, and this episode is happy to prove it with Ebbinghaus's painstaking experiment.

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