I ve never seen a good forcast based on graph analysis, I dont even know why people are still doing it. You have no clue, who will do what and with how much money tomorrow + there are dozens of uncontrolled elements that influence price anytime.
The reason why people still doing it since over 100 years, might be that it might work
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The problem lies in the humans which try to use this toolkit. A lot lie to them self.
Technical Analysis must be mastered in both theory and practice.
Its easy to pull out some lines with vague predictions (up down) and no rule based explanaition.
Technical Analysis is a big term for a large bunch of tools and styles.
Just to name a few Styles: Candlesticktrading(Steve Nison),"PriceAction"(Nial Fullerand others),Trendlines+S&R,Volume Spread Analysis(Richard Wyckoff), CylceTheories(Gann,Elloit and others),chartpatterns(Classic,Gartley,candlesticks) i have a full excel sheet of more.
None of them will make you rich just from reading the theory. These are just tools.
A good analogy is this:
A musican must master his instrument to have succsess.
The same applies to trading and technical analysis for a trader.
So if you never seen a good forcast could caused by 2 options.
You just searched in the wrong places or to few at all.
You did not understand the thoughts of the autor.
The markets arent fully random nor fully predictable, as a trader you should think in probabilities.
This can make your work much easier and succsessful in the long run.
It is really easy to prove that markets aren't fully random, since humans arent fully random.
Last examples from Fiat markets(Forex): Greece could not pay the debt last Sunday 5. July.
Guess what happend to the Euro/USD on Monday? Price dropped.
Was this random or by reason?
Another example are Market hours.
Volatility and Volume increases and decreases at specific times during the day
Example from Fiat markets(Forex): Every day at 8h (gmt+2) the Volatility rises in Euro Pairs.
This is not random, it is causes by reason. The EU-Markets open. The same for 11-13h,
volatiliy decreases - people take their lunch. 18h they go home volatility decreases...
greetings