That math assumes a flat distribution of popping times, which I suspect is incorrect.
Listening to a bag of microwave popcorn, it starts off slow, gets more rapid, and then tapers off again, implying that kernels are more likely to pop near the average time, which makes it somewhat more likely for two kernels to pop simultaneously.
But yeah, whole bag at once is probably still basically zero. Unless you use one of these, of course.
I think TES NPCs have been reacting to clothing since Daggerfall. Back then it was just a disposition modifier based on the total value of what you were wearing, but still.
They haven't said they intend to stop making D&D games. And every D&D crpg in the last 20-odd years (since Torment, I think) has been set in the Forgotten Realms. So it seems highly likely that future games will be loosely related to BG, just without that specific title.
I would love to see them bring back some of the weird old settings, like Dark Sun, Spelljammer, or even Dragonlance. But I'm not holding my breath.
This works for all numbers ending in 9:
x*9+x+9=x(9+1)+9
=10x+9