This historical perspective seems like a few minutes of an SFIA video :) "what is education?" seems like a good start.
I just think huge virtual class rooms could be a short topic.. which is basically youtube anyway. As a side note, I joke that my children are going to "youtube college" so i wont have to pay, but the reality is that i have learned a lot from youtube - and I work in the space industry. Another topic could be education across a solar system and across the galaxy (and in transit haha). You have done governments and economies in this perspective but knowledge/education could look different if your daily tasks are needing to fight thermal or gravity concerns on a daily basis. Maybe that thought is getting too far out there - even for SFIA. :)
Anyway, i appreciate the discussion here. I look forward to SFIA every Thursday. I hope everyone is staying safe!