Saw this on a forex forum. It's trend following for people who can't predict direction. You start small and if price goes against you, stop and reverse with a bigger lot size, if it goes against you again, stop and reverse with a bigger lot size, etc. You're betting that price will eventually trend enough for you to make money before it bounces back and forth x amount of times. One guy ran this out to 24 progressions (starting from like 0.1 lots and ending up at 63 lots or something) and said he never lost. Here's a pic illustrating: It's almost like modified martingaling with the trend (since most martingale systems are counter trend). Discuss.