Again, you have it wrong.
where nuclear weapons are used so frequently that the average person will need tablets
All it takes is one nuke to go off and winds to carry the fallout to relatively stable countries far away.
But let’s say that you are dealing with some level of societal collapse from nuclear war. You still need iodine. Without it, it won’t matter if you secure food, water, and shelter, because you’ll get some aggressive cancer and die anyways.
Regardless of the specifics, iodine is important.
Lol, no it can’t. Do you have any idea how many smaller LLMs are out there? Small enough to be trained and fine-tuned on consumer hardware. And most of those are “open” sourced models. Which means tens of thousands already have them on their computers and running locally. This genie will never go back in the bottle.