IMHO, 2 most important things limit the audience:
I do however think that content which works around the above issues does have great potential. I remember paying for pluralsight to see what was basically a steam (not much editing) of someone building and application in a framework or language that I wanted to learn. Would be a much better experience if it was interactive (new business idea).
Furthermore, I think it would have great potential in OSS. If project maintainers would stream their work, it would be easier for people to get into projects and contribute.
Yeah i agree here.
For OSS it could also be a source of making money
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