how to theoretically become a chess GM

a famous quote from mikhail tal is "I like to grasp the initiative and not give my opponent peace of mind". you can get the initiative by making one move threats. so theoretically, all you need to do is master attacking chess and get the initiative. this method of play will not work against engines because you might need to make crazy refuted sacrifices. the next thing you need to know is defensive play. if your opponent has the initiative, you need to know how to survive his attack and take the initiative for yourself and start a mating attack. you might ask the question: what if you can't attack. let me ask you, what do you do before an attack? correct, you prepare for it. to prepare for an attack in chess, what do you do? correct, you develop a piece. you develop pieces until you can go on a king hunt and win the game.

I don't think initiative comes from one move threats. But love me some Tal

just get the initiative and attack