A ``plateau" occurs when performance becomes "stuck" at a suboptimal level.

What is it about?

We highlight the "stuck" phenomena using the classic game of Tetris and show that players at different levels of "expertise" become stuck for different reasons. That is, Tetris success does not simply depend on "twitch speed" but on the strategies, tactics, and techniques players possess -- and that these skills vary with play level.

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Why is it important?

Skill is NOT automatic. Skill is NOT one thing. The acquisition of expertise requires a continuous series of performance plateaus, dips, and leaps.