Without getting into the math, the way to think of it is number all the people 1-23.
And then think of all the different combos
Person 1 and 12, 6 and 19, 8 and 22… etc at 23 people like the math above shows there is a 50-50 shot of 2 people in the room sharinbf a birthday.
This does not mean that YOU and one of the people share a birthday just that 2 people in the room do.
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