how was it proved that every person has unique fingerprints?
In: 17
Not the guy with the answer, but I will point out that “proved” is an absurdly strong standard to meet, one that science is not interested in. As far as we know, there’s nothing preventing the exact same fingerprint to appear again, as long as the conditions for it are met. It’s just that those conditions are really specific, so we humans won’t be able to replicate it intentionally, at least not yet.
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