p.p.s. If you want a more conventional video introduction to Mastodon and the Fediverse, try these:
"Mastodon in 180 seconds"
https://tilvids.com/w/wx2iLhD3pTipbKFJKLyx5t
"What is Mastodon?"
https://fedi.video/w/cbQE3NRw76FayQCSdb14TU
"What is the Fediverse?"
https://framatube.org/w/4294a720-f263-4ea4-9392-cf9cea4d5277