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On the "all arguments are soldiers" metaphorical battlefield, I often find myself in a repetition of a particular fight. One person whom I like, generally trust, and so have mentally marked as an Ally, directs me to arguments advanced by one of their Allies. Before reading the arguments or even fully recognizing the topic, I find myself seeking any reason, any charitable interpretation of the text, to accept the arguments. And in the contrary case, in a discussion with a person whose judgment I generally do not trust, and whom I have therefore marked as an (ideological) Enemy, it often happens that they direct me to arguments advanced by their own Allies. Again before reading the arguments or even fully recognizing the topic, I find myself seeking any reason, any flaw in the presentation of the argument or its application to my discussion, to reject the arguments. In both cases the behavior stems from matters of trust and an unconscious assignment of people to MySide or the OtherSide.
And weirdly enough, I find that that unconscious assignment can be hacked very easily. Consciously deciding that the author is really an Ally (or an Enemy) seems to override the unconscious assignment. So the moment I notice being stuck in Ally-mode or Enemy-mode, it's possible to switch to the other. I don't seem to have a neutral mode. YMMV! I'd be interested in hearing whether it works the same way for other people or not.
For best understanding of a topic, I suspect it might help to read an argument twice, once in Ally-mode to find its strengths and once in Enemy-mode to find its weaknesses.
Just wondering if it would make sense to consider everyone a Stupid Ally. That is, a good person who is just really really bad at understanding arguments. So the arguments they forward to you are worth examining, but must be examined carefully.