Fable: "write me a rhyming poem with six four line stanzas, each stanza removes another vowel. the first has no u, the second no u or i, etc."
Ethan Mollick
the main problem with video as a format is that it's too slow at dispensing information. I can read much faster than you can talk and there's no way you can address this without becoming incomprehensible to most of the audience.