Spoiler
@Leo, I don't know how ideas like this get around without their being an official source. It's literally like it gets around because people are wondering if it's true, not because any reliable source has said it is true.
And so, @Kira, I'm curious about where you heard it

@Leo
I did create different personalities but though I imagined and daydreamed them handling situations differently from me, especially after I handled something in a less-than-satisfactory or regretful manner. And also doing things I wasn't capable of but wanted to do. Retaliate to a person when in reality they're in a position of power over me, for instance. But I never acted them out. I wouldn't have known how to. I've never been able to go against myself in action, only in inaction (so I stick to who I am in whatever I say or do, when I go against myself for what other people or the world wants, it's not in what I say or do, it's in forcibly staying quiet or letting something happen.)
@Moi
Question time is the worst. At least I can reach the end of my speech, even if I falter, by trying to remember or by skipping to what I can remember, but if someone asks me a question I don't know the answer to... what do I even do xD
@Kira
I've noticed that about you lol. More evidence that your 'impulse' is an ingrained process that's a part of you. (Gotta stop referencing other conversations all over the place <.< ok I'll stop now.)