Elliott Wave Theory has been successfully used by top traders and investors to assist in market predictions since the 1930s (https://en.wikipedia.org/wiki/Elliott_wave_principle) when Ralph Nelson Elliott, published his theory of market behavior in the book "The Wave Principle", and stated that "because man is subject to rhythmical procedure, calculations having to do with his activities can be projected far into the future with a justification and certainty heretofore unattainable."
Technical analysis requires you to study charts on price averages, trading volumes and a multitude of technical market theories like Dow theory, Relative Strength Index,
Elliott Wave theory and more.
Now TA-1 is able to analyze waves and predicts the next extreme (high or low price) similar to
Elliott Wave theory of recurrent stock market price structures.
According to the FT, some fans of the
Elliott wave theory reckon that the market peak in 2000 was the top of a five-wave pattern that began at the market's low point in 1932, meaning that a massive setback is imminent.