> he'd have to cheat + have a continuous absence of mistakes, which is an awful lot of information to transmit.
Perhaps a top-level player can jump to a higher level if they can stop worrying about coming up with brilliances in the macro strategy, and instead focus entirely on making their micro-level play spotless.
This is the opposite of what a computer-assisted player would do. Computer chess engines (generally speaking, somewhat less true of the latest generation) are not great at high level strategy but will never miss a tactic (micro level play).
