I disagree. 95% of traders lose because many of them are degenerate gamblers looking to get rich quick - and are unwilling to put the necessary work / time in to become consistently profitable. Everyone has a ceiling and can't do this - but I suspect it is primarily due to the former. Just IMHO of course.
PS charts are a graphical representation of data. As such they have significant meaning and are a visual measure of inertia ....and since inertia is what it is depicted in charts that makes the patterns useful for extrapolation. You can literally see inertia waxing and waning. Pulsating and dying down. Reviving and growing. Drying up and stopping. Reversing in the opposite direction. Like the tide and the undertow. One pushing..one pulling...back and forth. A doji is a one bar trading range. Bulls and bears are in balance on that particular one bar. All bull bars ...ALL...are trends...BO’s...and climaxes....AND spikes. Same for all bear bars. Just go inside a bull bar and look around. You will see the trend...the BO...the spike. Do you know what is happening in a triangle? What forces are at play? Why it even forms? And does it mean anything? And what does it point to? What are the probabilities of something happening to the triangle? Why?
Guess what Sparky, Simons team of scientists and mathematicians spent many months of research and testing and came to the conclusion that there were recurring patterns on the 5 minute charts which could be exploited for profits and wrote algos base on those patterns. They had no initial preconceived notions as to PA one way or the other. Now it doesn't require a Mensa chapter to come to such conclusions, simply a lot of work and testing. Even you could do this but that would appear highly unlikely.
"Simons team of scientists and mathematicians" 99.9999999999999999% of traders don't fit in this category. go to the pychiatry and show the guys your charts, they will show you 100000000000000000 patterns.
I can tell you with 100% certainty I am not Mr Brooks but I will say if you will study him well and practice .....the probability is fairly high you will become a little fish that swims with the inertia.
Hint: the triangle cannot...will not...stay a triangle. 100% guaranteed. The market will not allow that.