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pi is defined as the circumference of any circle divided by its diameter in flat (= Euclidean) space.
That definition can be made in any universe!

Yes, but in universes with different physics, PI will have a different value.
At least that's what I guess.
 
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Yes, but in universes with different physics, PI will have a different value.
At least that's what I guess.

We have Pi = 4 * (1 - 1/3 + 1/5 - 1/7 + 1/9 - ...), where the the brackets enclose the alternating sum of the inverse values of all odd natural numbers.

Also Pi is the smallest positive real number r with e^(r*i) = -1 (where ^ means exponentiation, e is Euler's number, the base of the natural logarithm, and i is the square root of -1).

How should these values be different in a different universe?
 
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Monday, March 15th in the year 0002 AC (After Covid)
 
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I imagined "after covid" being different from the situation we are in now.
 
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