Ideas organized by the problem they help explain.

Attention is the tool underneath every other tool.

Development matters only when it holds as conditions get harder.

Available capacity changes what a person can access and execute.

Instruction becomes development only when the player can use it in the game.

Tools show possibility; behaviour, environment and repeatability show usability.

Standards become real through repeated behaviour, not stated intention.

The environment can increase or protect the athlete's available capacity.

A person cannot change a pattern they cannot see accurately.

Digital load is a performance variable when it changes sleep, attention and regulation.