On: Researchers Created Fake 'Master' Fingerprints to ...

[tedunangst]

There's a 1 in 2^46 chance that siblings born separately will have mostly identical DNA, minus a few random mutations.

[smolder → tedunangst]

Even born separately from the same parents, or from different parents with the same available genes to generate the same haploids?

[tedunangst → smolder]

Yeah, plus some infinitesimal chance your aunt marries your uncle and your cousin comes out just like you, etc.

[LMYahooTFY → tedunangst]

Does that qualify as significant in any practical implementation for identity?

[tedunangst → LMYahooTFY]

If ID was based on a full sequence, probably not, but it rarely is. But if you ask how can it be not unique, that's an answer.