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2026-07-31 23:57:31 UTC

Joseph Lorenzo Hall, PhD on Nostr: Knuth's up-arrow notation is a trip. One arrow is a normal exponent: 3↑3 is 27. Two ...

Knuth's up-arrow notation is a trip. One arrow is a normal exponent: 3↑3 is 27. Two arrows mean stacking them, or 3^3^3; so 3↑↑3 is 3 to the 27th power, or roughly 7.6 trillion. Now build the "power tower".