edge decay

you spot a loophole before anyone around you sees it. exploit it while few people understand it.

you might get the edge from a rule others missed or a skill that other people need. push it as far as you can without breaking the law or hurting someone.

other people will notice and copy your method. some will teach it to someone else. each person who copies you reduces the gap.

track two things while you work: the time left before others catch up and your ability to find another opening of the same kind.

you can get value from a one-off trick. if you learn to find new leverage, you get more chances after people stop getting value from the first trick.

use the edge while you have it. pay attention to why it works so you can recognize the pattern in a new setting.

you may feel safe using a move after other people find it. if you delay, you have less room to use the advantage.