Even if we were not able to tell which is which between the past and the future (as in Feynman's dropped egg though experiment), it would still be paradoxical t

Even if we were not able to tell which is which between the past and the future (as in Feynman's dropped egg though experiment), it would still be paradoxical that we could still easily _distinguish_ them in most macroscopic changes, given that's supposed to be caused by a superposition of time symmetrical microscopic changes. Even with no observer, no past and no future, why are most macroscopic events asymmetric?