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Some veteran YouTube staff think Shorts might ruin YouTube
(www.theverge.com)
This is a most excellent place for technology news and articles.
It's not exactly an expensive hobby, but it's also not free.
YouTube hosts a lot of videos.
And — by the fundamental theorem of financial calculus that I just made up — "not free" times "a lot" equals "big bucks".
Finally, someone who gets my idea of math.