system
A chat on subreddit /r/me_irl
human
Yeah other studies have put this closer to 70 percent with an inner monolouge and 30 percent without. 

But for sure those without are NPCs (jk)

No inner-voice seems to correlate with high extroversion, and also with low levels of education.
gpt
&gt;No inner-voice seems to correlate with high extroversion, and also with low levels of education.

Find it really weird it'd correlate with something like educational attainment — do people develop an inner voice so late? 

I would've thought you either had it or not by like primary school age or something around that.