Math Encounters: "Tag Deal: Discrete Chaos in a Deck of Cards"

featuring Barry Cipra

Wednesday, January 12 at 7:00 pm ET (New York)


Insanity, it's sometimes said, is doing the same thing over and over and expecting different results.  Mathematics, it might be said, often involves doing the same thing over and over and actually achieving different results.  Join freelance mathematics writer Barry Cipra for some mathematical insanity with Tag Deal, a game of unpredictable repetition.

Special introduction by Laura Helmuth, Scientific American Editor-in-Chief.

This is a live-streamed broadcast of an in-person event.  Occasional video recordings are made available for a fee at

This page is for the 7:00 pm ET (New York) live-streamed session.  Click here to register for an in-person session or for the 4:00 pm ET (New York) session instead.

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Math Encounters is MoMath's popular free public presentation series celebrating the spectacular world of mathematics, produced with support from the Simons Foundation.

For further information, call the National Museum of Mathematics at 212-542-0566 or email

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January 12, 2022 7:00 pm   through   8:30 pm
MoMath Online
United States
Phone: 212-542-0566

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