Yeah, this makes sense. I talk to myself a decent amount. But not about anything remotely constructive.

I'm a talkative person by nature and spend a lot of time alone, so I'm guessing it's more loneliness than anything; although I'm certainly not depressed. It's like an itch and suddenly, without realizing it, I'm having full blown conversations with myself. I've always wondered how many of us there were out there.