iPadOS "math notes" brings some spreadsheet/Calca mechanics to handwriting:
https://www.youtube.com/live/RXeOiIDNNek?si=D0I3FnVdzoCgV8em&t=2790
Oh, and they even added Bret Victor style variable "scrubbing".
(Desktop also got builtin Math Notes, minus handwriting, briefly flashed 51:57 — looks very much like
Calca.io / Soulver / NoteCalc etc.?)
So, are we "Magic Ink" yet? (I'm not so much thinking of Bret Victor's essay as Ink&Switch's experiments like
https://www.inkandswitch.com/inkbase/, CrossCut & Untangle ...)
On one hand nothing revolutionary, spreadsheets had much more power for decades.
And yet a solid chunk of useful functionality is starting to move into taken-for-granted "this is just how futuristic paper
naturally works" territory 👏.
I expect long term it might make such "what-if" explorations accessible¹ to more people, and more importantly prepare people for more complex interactions on top?
¹ well, once/IF it waters down to lower-end hardware. Good-enough stylus tech remains expensive enough to be niche,
not evenly distributed 😞