The result of discussions and various statements in social media such as "lol I'm not normal", talking to yourself is such an intellectually healthy and useful habit that it reminds us that our own company STILL is better than anything else.
As I spend a good deal of the day working "creatively," the act of overthinking is ridiculously frequent, and in the midst of that process, I spend a ridiculously large amount of time stopping everything I'm doing to SIMULATE a conversation in my head, every now and then doing it in spoken voice, (for realism) or simply repeating for myself a stretch of a film / book that turns out to be interesting and somehow deserves an instant acting.
Do you usually talk to yourself too? Ah, and no problem, this thread is extremely stealthy.