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Yes, I think your intuition is basically correct. Neuromuscular coordination and power across a variety of tasks is likely improved by doing a variety of tasks compared to specifically training at the tasks that are moving fixed, specific shapes with predefined appropriate motions. We can see something similar to this in endurance sports, where athletes become specialized at the specific thing they do to a much greater extent than sports that are seemingly similar at a glance - you're not going to see the differences between cross-country skiers, cyclists, and marathoners just from looking at their literal muscle mass and aerobic capacity, but they're differentially efficient at their sports of choice and require less energy to accomplish the same tasks. Compare all of these linear activities to the versatile endurance of a soccer player and they'll all seem mechanistic and rigid by comparison, because that's exactly what they've trained themselves to be. Similarly, the manual laborer that needs to carry shingles up to a roof and nail them down develops a more versatile set of muscle movements than the powerlifter.
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