> I read fiction on a Kindle oasis. Its fantastic. I can't think of a single improvement.

I have one and I can. The case is too slippery. It's hard to operate one-handed while lying on the couch because it slips out of your hand. My old Kindle 3 is very easy to operate one-handed at any angle, no slipping.

That’s always been the case for technical content. The form factor and the document structures are fairly unsuited to pocket devices. I use mine for fiction only.

I crank out the desktop for technical content almost universally. iPad doesn’t cut it either.

But at the same time I have actual physical books for very technical stuff. They are still easier to use.

The trouble is all the things you would need for reading technical material (large size, note taking, etc) would detract from what you need to read fiction.

They probably should be two different devices. Personally I'm waiting for the new Remarkable.

That's why I still have a Kindle DX. It's way out of updates and it's very slow, but it still works.