For that use case I'd probably optimize less for "best keyboard" and more for "least annoying thing to pack and set up"

I think the remaining friction is mostly ergonomics and integration

Most folding keyboards I've tried felt like travel compromises first and keyboards second

Yes, I would say this keyboard is notable specifically because it is one of the few travel keyboards that is truly at par with a real desktop keyboard. It's not perfect, but the benefits of "one keyboard everywhere" outweigh the flaws for me.

I want this too, though I suspect the hard part is less compute and more the boring peripheral/ecosystem stuff

Mouse, keyboard and a screen would already cover the needs for most users. No need to wait until everything just works. As for the ecosystem, Apple’s Neo is a phone connected to a bunch of peripherals. Even on limited iPhone/iPad OS a more desktop like interface could easily be implemented. The iPad already has some half decent desktop approximation.

The hard part is getting Apple to cannibalize their desktop and tablet related sales. Because they’re the only ones with all the tools in the box. Samsung doesn’t have any proper OS of their own to take this role, they bolt it on Android.

I've noticed the same thing with writing on smaller screens too: shorter paragraphs, less overthinking, and a lower psychological barrier to starting

Smaller screens can help, but can be counteracted by fast typing. Impt to be mindful of both.

1947 is still old in any practical sense

Bi Sheng had movable type much earlier, but that doesn't necessarily imply a Gutenberg-style screw press as a surviving physical object

There's something fascinating about that middle stage of technology: vastly faster than manuscript copying, but still completely dependent on human rhythm, muscle, maintenance

In a way, the modern problem is almost the opposite of the old one: not scarcity of educational material, but too many plausible-looking teachers

Well and succinctly said.

Even if the target author is an LLM, the accountability still lands on humans eventually

not necessarily, someday we might have businesses entirely managed by agents, including the ownership and crafting itself, probably accepting crypto only where absolutely no human oversight will exist, even the money made might not be distributed to humans.