I wish there was a button on my keyboard that I could press when there's a red squiggle in the last N words, which would cause my computer to fix the underlined word to its best guess. It should wait until a few words later, to get more context. It should flash the new word as it's being inserted, so I can easily see what it's done.

Spell check used to be kind of lousy, but with AI I imagine it would have a very high rate of accuracy in context. I am greatly slowed down by having to delete a few words/chars every now and then, and if I could just smash a key and go on my way, it'd be much more efficient.

> with AI I imagine ...

I think that might be just imagination - android autocorrect in particular got sufficiently worse that I finally turned it off (I still use it as a "typing assist" - it only displays choices that I can tap to replace, or (more often) ignore.)

Most mobile keyboards will do autocorrect as you describe it, and show top-N alternatives when you go back and tap on the autocorrected word. I prefer this to it mocking my mistakes and making me pay penance by manually accepting the correction.