That sounds very different than my memory of MUDs. The ones I remember were much more a text-based version of "World of Warcraft" or other similar MMOs where you navigate through a world, complete quests, etc. You could chat with other players but it was more about teaming up for quests than a creative writing/roleplaying exercise.
Not to say that what you're describing didn't exist, but I don't think it was defining feature of all MUDs.
> I read a few years ago about a teacher (I think highschool) who put his lectures on YouTube for students to view in their own time and then used the in class hours for interaction, questions, tests.
That seems like a smart approach. It reverses the traditional model of "lecture in class, homework outside of class".
I've not worked at Meta, but I was at a similar scale of company for 2 years before being let go. Once you factor in RSUs, they essentially paid double what I've ever made anywhere else. Knowing how volatile those sorts of positions can be, I just saved & invested all the extra, which worked out quite well.
The sun still. It's just that that side never points towards the earth, but it still gets sunlight. Same as how the side we see isn't fully lit except during a full moon.
First time around, luck mostly. Happened to get hired by a company that switched to this schedule. I eventually left for higher pay (but gave up my Fridays). Eventually got laid off, and a friend who was still there managed to get me a spot back on her team. By that time, they'd embraced remote work during Covid and decided to keep it permanently.
Granted, I could probably be making way more if I were to leave - I took a pay cut when I went back the second time. But at this point in my career, I value the 4/10 and lower stress job (no on-call rotation) more.
I've been working 4/10 schedule (4 days, but 10 hours/day, so I still work 40 hours). It's a HUGE perk, and is the biggest thing keeping me at my current job.
Not to say that what you're describing didn't exist, but I don't think it was defining feature of all MUDs.