@gruber I must admit that I had my chance long ago. I had a hand in on adding spellcheck, the red squiggle, and the menu system to iOS, and of course, the text system too. Other things took priority and then I moved onto other projects. Sorry!
@gruber@kocienda The really depressing thing is that Learn Spelling would probably break all the machine learning bullshit (or at least be hard to work side-by-side), so it’s unlikely to happen now.
@chockenberry@gruber@kocienda surely on MacOS the "learned" words are stored in some little file somewhere. I wonder which. I think it has indeed persisted across the decades.