A sub that would greatly improve your ability to learn & play chess
For example
Ability to quickly see the underlying principles that determine the move that should be made
Flow state each time you sit down to play, optimal nervous system state
Develop the mental awareness to notice when tactical opportunities are available
Unphased by whoever you play against, regardless of their elo
Instant access to your subconscious to get the necessary inspiration for which moves to play
Ability to quickly and deeply remember the what you learn
Ability to intuitively understand which areas of chess require more improvement (ie. opening, middlegame, endgame, tactical awareness, positional understanding)
Asking yourself why and how certain movies have to be played (higher order learning - from bloom’s taxonomy)
Good clock management, rarely end up in time scrambles