“ Even at a Hamming Distance threshold of 0, that is, when both hashes are identical, I don’t see how Apple can avoid tons of collisions, given the large number

“ Even at a Hamming Distance threshold of 0, that is, when both hashes are identical, I don’t see how Apple can avoid tons of collisions, given the large number of pictures taken every year (1.4 trillion in 2021, now break this down by iPhone market share and country, the number for US iPhone users will still be extremely big).” Is this true? I’d imagine you could generate billions a second without having a collision, although I don’t know much about how these hashes are produced. It would be cool for an expert to weigh in here.