[jeremyjh]

Is it actually possible now? In order to do this it would have to be reading your typing in real time and creating a relevant response and then decide (correctly) its response should be to interrupt or interject.

You are right that no one would want an existing LLM to do it because they are not capable of doing it correctly. The ones that are fast enough are far too stupid to do it correctly, and its not clear to me even if GPT 4 could be fast enough that it would do it correctly 8/10 times, which would be about the worst it could do before anyone would turn off that feature.