I suppose nearly any montage of skateboard learning would do, but this video on reddit today immediately reminded me of @Troy’s past discussion of learning skateboard tricks as an analogy for the “starting with speed” concept applied to guitar.
At the stage of development of the skater at the beginning of the video below, doing those wild flips through the air appears to have become the “easy part” of what he’s trying to achieve. The hard part is the accuracy and timing and coordination of how he lands. We can think if the aerial gymnastic part of this as isolated picking hand competence, and sticking the landing how he wants as coordinating the fretting and picking hands.
As summarized in the montage, the way he works his way into that coordination is through a progressive refinement of “at speed” trials, rather than a process of “perfect a coordination task at slow speed, then perfect it at a series of incrementally faster speeds”.
Luckily in the case of guitar, mastering the “at speed” version doesn’t even have to be the end of the road. Unlike in the skateboarding case, we can choose to explore mastering the task at lower speeds. But it can be prudent to first discover a technique that is capable of satisfying task success criteria under the more limiting condition (high speed guitar picking), and then develop performance ability down at less limiting conditions (lower speed guitar picking) as desired.
Edit: To be fair, the first few trials in the video illustrate a less ambitious aerial component. I think the progression illustrated in the video is still a good overall fit as an exemplar for “starting with speed”. I think the progression shown in the first few trials for the aerial subset of the skateboard task in the video maps to the period of feeling out fast and smooth picking of a repetitions of a single note without adding fretting hand complexity, but maybe some of you have a different take.
Edit 2: Man, that curb corner near his landing zone could have seriously ruined his day on any of those “misses”.