For papers, I simply send them to the Kindle email (as I do for *cough* documents in my Kindle Paperwhite).

I love my Kindle Scribe but it must be clear that the use cases are pretty narrow: using it exactly as a physical notebook (no real good way to export/sync/ocr); and reading papers+taking notes on them as if they were printed (again no good way to share/export the annotated pdfs, afaik).

Using humans/objects for scale is a simple and reasonable baseline but using a generator sounds wacky. You're really relying on the generator to fully understand the geometry and scale of the scene so that it draws the object with the correct size. Curious to read this! 😁

Of course useless for all practical purposes :-)

Link doesn't work. Let me try again tom7.org/grad/

There are nonlinearities from computation in finite precision, see this fun work tom7.org/grad