“You brain changes over time, too, of course”
Okay, let’s say it changes with your ideology, and in predictanle patterns. Did it cause your politics to change, or did your changing politics change it? Or did it slowly evolve along with your thoughts? Or did your experience change your brain and your brain change your politics, or your experience change your politics and they both change your brain, or what?
How would we ever know?
heh..you beat me to it!