I don't know much about AI and NN's either, so grain of salt and all that.. In theory, yes - you can. The training function could return a score - say the numb

I don't know much about AI and NN's either, so grain of salt and all that.. In theory, yes - you can. The training function could return a score - say the number of matching digits in the hash - and the NN will in theory learn what inputs produce the better output. If somehow, there is a weakness in the hash algorithm, it could stumble onto it - allowing it to get better at producing the right input to get the required output. The simpler it is to deterministically manipulate, the easier it should be for a NN to learn to manipulate - even of the function is just returning a boolean or a "rating between 1 and 10". So yea, good hash functions are unlikely to be learned and solved, but photos and videos aren't designed to be hash functions. (All that said, I'm willing to be bet the time and computing power you'd need to pour into this NN to break a good hash function is likely more than has ever existed in the sum of all past time + computing resources ;))