Perhaps the greatest advantage and disadvantage to a player can be the amazing spurts of fortune or misfortune.
While we can memorize very table, every perfect play, ever odd, every indicie etc... there is one thing that is out of our control that is how far can deveiation go?
I have seen EVERYONE at a table including the dealer get a blackjack.
I saw a girl at third base get 3 blackjacks in a row in a negative shoe. I have gone from $300 to $7000 in 2 hours. I have lost $5000 in 3 hours.
While the cards don't care who we are, what mood we are in, how bad we need to win or how much we may not need the money it is amazing the type of deals that are dealt. Sometimes things happen that tend to seem impossible in terms of % or odds of happening and it will happen two or three times in the same night.
Every gambler belives in "luck" "flow of cards" etc... It is hard to convince them otherwise unless you show tables, percentages, software, million hand simulations etc... a +20 shoe a person can lose it all a negative shoe someone can win a dozen hands in a row, how can this be explained without any faith or spirutuality or luck at play.... simply amazing and it's something we can never control or predict. Somethings just seem to be beyond coincidence.
Just a thought.