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TIL the odds of your father’s sperm meeting with your mother’s egg to create you is 1 in 4 quadrillion. The odds of you existing as yourself (traced back to your first ancestors) is 10^2,685.000.

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yVekw TIL All of the bases in DNA and RNA have now been found in meteorites
epxWL TIL about "Hammerspace," the imaginary dimension from which cartoon characters pull out random objects.
XZpQ TIL of the Skeleton Coast of Namibia, aka “The Gates of Hell”, a place so inhospitable that when the MV Dunedin went aground in 1942, passengers were only rescued after another ship ran aground, a big aircraft was damaged on landing, was repaired and crashed again, and several army trucks were lost.
GYYm4 TIL Antarctica is classified as a desert because it has less than 25 cm rain per year.
aKQ0 TIL of the Big Mac Index, which helps explain purchasing power parity to the layman. You compare the price of a Big Mac in one country to the price in another to determine if exchange rates are overvalued.