There is a holy grail but you must become Tommy. That deaf, dumb and blind kid sure plays a mean pinball. Learn to play/trade out & not stop. At the very least get that scissors kick move down.
It's not illogical. It's impossible. You cannot prove a negative because you cannot cover every case exhaustively. It could always be the one you haven't found yet.
You want someome to prove your "opinion" is wrong? My opinion is that you are below the minimum IQ level that should be required to operate a computer. Prove me wrong.
I understand your point; but just to be clear: The laws relating to physics, mathematics, geometry, etc. can be proved without testing every possible scenario. For example, since every point above the Earth hasn't been tested for the presence of gravity; some could argue that you can't prove that there is at least one point above the planet such that gravity does not exist (especially if the point is moving), as this would mean 'proving a negative.' But, they would be wrong.
but what evidence is there that the holy grail doesn't exist? there are many hedge funds that trade entirely with their algorithim in fact i think that's the standard today
My post had nothing to do with "the holy grail," but I'll bite: First, you haven't defined exactly what you mean by "the holy grail." Second, ask and answer for yourself, "what would ultimately happen at a poker game where just one player won every hand?" Third, ask and answer for yourself what would ultimately happen to the markets if someone had the ability to trade any instrument with 100% accuracy. (I use this as a possible definition of "the holy grail" since you've failed to provide one for your own question.) Fourth, ask and answer for yourself, "what evidence is there that Superman doesn't really exist and isn't really from a real planet named Krypton?" https://www.seeker.com/astrophysicist-discovers-supermans-krypton-1766311765.html
the holy grail is some set and forget formula that will make you hundreds of millions with little to no risk. what would happen? they would make money at the expense of most everyone else. and that's what happens today.