I worry about forex for the simple reason its approaching if not already at, the system of perfect competition in economics.
Gann himself, was into astrology, and with the greatest of respect to someone who may well have been a very nice gentleman, this is utter clap trap and twoddle and about as useful in predicting the next move as my stars in the Sun are of telling me if I'll get a payrise next week. I've read a little of his stuff and it never ceases to amaze me how undeniably gifted and intelligent people fall into these delusional false beliefs. Nobody is immune to a little hocus pocus.
So back to fact, forex is approaching perfectly competitive, this is backed up and underlined by the existence of applications like metatrader who give you free prices. Nobody gives anything for free, and then there's the system people who post a system saying ten pips one way , and wait until enough people are on board then take 8 in the opposite direction. Systems exist but not in the way most of us think, but in terms of social engineering.
Saying that I'm going to have a go at forex anyway, just to exhaust my curiosity as to whether or not the market is perfect. I'm wondering, as a worldwide phenomenom that never sleeps, if mistakes are made, at all , without prior design. i.e. is it possible to make an honest buck on forex, or do you have to manipulate enough people to go the other way,and turn up at the same time and do the opposite , almost a philosophical question there.