That's a powerful idea and it actually goes deeper than you may think. We are divided even internally inside ourselves. There is reason to think that your internal rational decision-making processes consist of multiple sub-processes that combine and compare various points of view. Each sub-process has the same level of interaction with other sub-processes as you would have when speaking to another person. Your mental sub-processes may not even distinguish between thoughts and ideas coming from another part of your brain and coming from another person.
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.
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