If you put lots of irrational beings together and let them all be irrational together, you will likely be able to observe there is a certain regularity within this chaos, as if there was a law which makes irrational masses behave a certain way.
if that was true you would be able to make consistent predictions.
Technical analysis does not predict future behavior, it predicts probabilities of a certain event.
if I tell you that next year is going to have a 12% hail chance in any of the 365 days how much help do I provide to you to protect your crops? Is it statistically significant than any other vague assumption?
Thinking there is no higher order in our irrational behavior is very naive as any sociologist can confirm.
sociology is bullshit. not a science