That's actually also true. The only thing that physicists have identified so far as being linked to time's directionality is entropy. Pretty much every other as

That's actually also true. The only thing that physicists have identified so far as being linked to time's directionality is entropy. Pretty much every other aspect of physics works with time's arrow pointed in either direction. So from a physical point of view, the only thing keeping the egg you dropped from putting itself back together is the slope of the entropy curve associated with that event.