I write to think because when I finish typing one thought often another thought naturally follows. The second thought often surprises me. Where'd that come from? It happens more often while writing vs just thinking.
This is a well known phenomenon in the study of the psychology of writing. Although we may start writing with an outline in mind, at certain points it feels more natural to go in a direction other than what we planned. This effect becomes more pronounced with greater expertise in writing. Study of the best writers shows that they rarely stick to a plan and are constantly rearranging as they revise a piece.
Maybe GPT-3 could be built into a writing IDE so it would suggest the next sentence that way a programming IDE suggests the next code completion. I'd worry that that would inhibit me from having an original thought, but on the other hand it might encourage me to reject the suggestion and come up with something more original.
Given than GPT-3 could create narratives, it would probably be too suggestive. Much more simple prediction models for writing (ie: not coding) are used in a few places. Google Docs has a pretty good one.
I'm familiar with sentence completion from GMail but I'm talking about thought completion. So for example in a programming IDE it's been true for awhile that it will suggest a name completion, but something new they are adding is suggesting the entire routine you are trying to write. I think CoPilot is even better at this.
> something new they are adding is suggesting the entire routine you are trying to write
But that’s only for simple cases where a person could easily predict the next few words, like business communications that stick to a cultural script, no?