Suppose we consider flipping 100 quarters. The odds of all heads is 1 out of 2^100, which is about 10^30. How can we explain it, then, if this happens in real life? Secondly, if we flip 99 coins and get all heads, what will be the odds of getting one more head with one more coin toss? I know the odds are supposed to be 50%-50%, but it's a very unlikely streak of luck to occur, so perhaps...somehow...there's an explanation for why it would be unlikely to get one more head on the next toss.