swathdiver
Full Access Member
While I certainly agree with what you're saying, I also know (because it's part of what I do for my employer) that people learn best by "seeing" what to do. You can write work instructions all day, you can tell someone how to do it, but nothing beats the visual impact of seeing the task at hand actually performed for real understanding and memory retention. We actually use YT as a tool to share with other manufacturing plants across the country.
I'm a kinesthetic kind of guy, learn best by doing followed by visual (seeing/reading). Auditory, not so much!