> I'm pretty sure there can be a "birthday paradox" variant of attack on genetics with respect to finding cold cases Yes. While not directly the same as your

> I'm pretty sure there can be a "birthday paradox" variant of attack on genetics with respect to finding cold cases Yes. While not directly the same as your single-person birthday paradox example, there is a huge difference in the likelihood of two random samples matching vs finding matches within a database of samples. In one database [1], there were 122 matches in 9 or more markers in a set of 65,000 people. The 9-marker matches, if done on two random people, would be "1 in billions" type matches. The short story is: Even smart folks don't understand statistics and misunderstandings can have life-altering effects. [1] https://www.theatlantic.com/science/archive/2015/10/the-dark-side-of-dna-databases/408709/ https://www.theatlantic.com/science/archive/2015/10/the-dark...