Hi I have a question that hopefully isn't too hard. I couldn't find exactly what I was looking for in previous threads, and please move this if there is a better section for it (I wasn't sure). Say I break an egg. Just from a classical or Newtonian view, if I could magically reverse the momentum of each individual particle in time, would it look like the paths of all the different particles 'conspire' to come back together into the form of original, unbroken egg? I say conspire because the entropy would dictate the bits of a broken egg are very unlikely to reform a whole egg by chance (or when the time continued forward as normal). If this is right my question is if taking this problem quantum mechanically, using probabilities for the "future" paths of the reversed broken egg bits, would still end up with the same result of the original egg, or a very similar egg, or something else? I'm kind of wondering if the probabilistic aspect of this version would 'eat away' at the drop in entropy associated with reforming the unbroken egg (compared with the deterministic version). My apologies if this question doesn't make sense and any poor terminology. Thanks!