wait i thought all humans dream but just some people may or may not remember the fact that they were dreaming hence why they say they don't dream

I have no idea what the specifics of that is tbh. If a tree falls into a forest and there is no one to see it, did the tree fall at all? If a Timeline is Doomed but there’s no players left to observe it, did it become doomed in the first place? If your memory of your Dream is nothing, did you Dream at all?