It's been argued that if you use the exact same settings that someone used to make one of their tracks, sooner or later it will generate the exact same thing. However, I've found that to be untrue. When using an alternate account (my dog's), that account created a track that was longer than the longest I ever made to that point so I wanted the same, just for the sake of it, but after using the same settings and looking through every single one it generated, none of them came out being the same as the one I created on the alternate account.
