Why Nines Repeat Forever
0.999… = 1 is not a rounding error or an approximation. It's a deep truth about what decimals actually are, and most people refuse to believe it.
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Rabbit hole
Numbers Are Weird
Math behaving in ways your intuition refuses to accept.
4 guides
Format:
4 guides
The Number That Broke Benford
In real-world datasets, the digit 1 appears as the leading digit about 30% of the time — not 11%. Tax authorities use this to find fraud.
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The Prime Number That Stops Hackers
Almost all internet security rests on one fact: it's easy to multiply two big primes, and unbelievably hard to factor the result back.
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The Paradox Of The Birthday Match
In a room of just 23 people, the odds are better than 50-50 that two of them share a birthday. The math is correct; your intuition is wrong.
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