Society was told for thousands of years that astrology could predict the future and we believed it. But turns out, it couldn't.

Society was told for decades that "technical analysis" couldn't work because any advantage would be arbitraged away. Turns out, that was a bunch of BS and we now have very strong evidence for the basis of "technical analysis", momentum, going all the way back to the advent of financial markets.

These two things are not at all analogous.