Not the GP, but have you ever tried using a laptop outside, especially on a sunny day? It's not terribly pleasant, and you'll probably be squinting the whole time - the reflective surface is particularly troublesome.

I haven't tried a large e-ink display (though I'd love to, especially for coding), but I've been using Kindle e-book readers for years - the difference compared to a glossy, or even matte, Led display is incredible; it's just like reading a printed book. No squinting, no eye-strain, just really pleasant to use.

I was just having trouble focusing on the screen. My eyes would drift out of focus. It was physically uncomfortable to force my eyes to focus. So I wouldn't. But for my work I would feel like I had to at least try.

For context, I had been going through some burnout. So some part of this was probably psychological. But I would look at the screen and just feel overstimulated. Like my brain wouldn't let my eyes focus on that bright little rectangle any more.

This thing is just much more gentle to look at.

The sense of physical relief is very similar to the sense of relief you'd feel when moving from a bright screen with no blue light filter to a nice warm screen.

(Assuming you have comfortable lighting in your environment, of course.)

You can try this at home:

1. Stare at a page of a book

2. Stare at a light bulb while it's turned on (just kidding don't actually do it it's not worth it)

Which one would you rather do for 8 hours a day? I don't blame you if you say "neither one".