Random theories are just more or less lucky guesses, I'd rather be researching into an asset I want to invest in, be it stocks or cryptocurrency, to get an understanding of the market and even if not for the immediate profits, but so I'll be productive in that field in the long term. That being said, true random guesses could give you profits some time, but if you learn all there is about an investment market, you can always make profits for a lifetime.
What makes you different than professional analysts whose beaten by darts?
Isn't that what makes random theories lucky guesses? Since even if it was an educated guess or just a plain ol' lucky guess, you both still have a 50/50 chance of hitting a jackpot and losing. I say educated since the guess is backed up with data that you think is relevant, and might just be relevant, but can also be not, but this really just increases your confidence of choosing the correct asset to invest in, not the chances of you actually successfully profiting off of an asset. Again, chances are ALWAYS 50/50, research and studies are just stuff that boosts your confidence in an asset, making you think that it's the correct asset to invest to.
TA's are great and all, lots of complicated stuff that I don't really understand, and might not bother even understanding them, but they're all in the end just predictions. This is why some people just throw away thinking and just go in. Predictions don't guarantee success, nor do they increase chances of success, so why bother thinking right?