A return to hand-written notes by learning to read & write – Google research on training models to recognize not just text in handwriting, but the actual strokes. So you could color or even edit-in-place the handwritten strokes later on. I hope someone is working on productizing this! A Remarkable/Kindle/Boox/Daylight tablet that recognizes sloppy handwriting and allows tweaking it later would make e-ink displays live up to the name. 🙃
Adjacent: Ink and Switch is publishing more of their programmable ink work lately.
If we play our cards right, the next couple years could be exciting for pen-and-paper sorts of thinkers.