How many decimal places of pi can you recall? If you did not know, Pi is the ratio of the circumference of a circle to its diameter. Reciting pi is considered to be the ultimate memory challenge, as it is an infinite number and there are no repeating patterns. I’ll give you a clue, it starts with 3 point something. Some people can remember thousands of the digits, but I’m not putting the poll up to that amount.

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on a bet, my friend memorized the first one hundred digits of pi. rather unusual.