I just finished reading a book titled: Easy Blackjack for the Average Joe. In this book the author explains how he has evaluated 300 billion hands of blackjack and extracted from that evaluation the percentage of hands lost and won in a row. He used that information to develop a betting system and he then compared that system to 8 other established betting systems. Long story short: His betting system came out with a slightly positive result and I was wondering how that could have happened in a negative-expectation game over that many hands. I'm looking for some clarification. How did the author make this work? He provided the math in tables and it seems to line up with his findings of groups of wins and losses in a row. Anyone read this book that can shed some light?