If you flip a coin ten times and it comes up heads seven times that is not so unusual. Just normal short term fluctuation. But if you flip a coin 10,000 times it is not going to come up heads 7,000 times. Not even close. That is, if the game is fair. That's the law of large numbers.
The thing about short term variance is it works against you just as much as it works for you. That's what Alan and Belly don't talk about. Alan's response to this will be "I don't flip coins."