You misunderstand. I'm saying that browsing a downloaded copy of Wikipedia is a counterproductive waste of time in a disaster. Investing effort into making sure you'll be able to access Wikipedia at all times in even the most dire of circumstances is probably having your priorities out of whack. It's like a kid packing for a trip by filling their bag with toys.
> I suspect you're overthinking it
No, I'm questioning some of the fundamental assumptions that would cause one to construct a device like this for anything besides cyberpunk cosplay.
> but this project strikes me as the tech equivalent of "Prepare an emergency go bag,and buy some tarp to seal your windows and doors in case of a shelter-in-place order[1]
> this is a computing equivalent of a go bag
It's like the exercise-equipment equivalent of a go bag, or the kitchen-gadget equivalent of a go bag (e.g. the kind of thing that shouldn't be in a go bag in the first place).
I think the idea that this is for anything but cosplay is the result of tech people fallaciously believing their most familiar tools (i.e. general purpose computers) will always be useful, and therefore making elaborate plans to preserve their access in situations where their PC will be as obsolete as a buggy whips.
> Having offline useful information will be useful from day 0 (maps, emergency frequencies, agricultural & disease info, for example).
Even assuming that is so, I think a bulky mains-powered PC is not anything close to the right tool to provide any of that. It would be about 1000x better to have compact amount of judiciously-selected paper reference material, augmented with a kindle with an appropriate selection of eBooks if you must be less judicious.