Of course, the more complex things are, the harder it is. If there were only a dozen or so air molecules in my kitchen, it would be likely—if
I waited a year or so—that at some point the six coldest ones would congregate inside the freezer. But the more factors in the equation—the
more players in the game—the less likely it is that their paths will
coincide in an orderly way. The more pieces in the puzzle, the harder it is
to put back together once order is disturbed. “Irreversibility,” said a
physicist, “is the price we pay for complexity.”