No, he only fought him. That doesn't help you get to know a person. Heck, even studying a person for decades and putting a tracking chip in their heads will only tell you what they do, not why they do it.

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And I don't think he's right to blame all Jedi. Or all Hux for that matter. But you can't just tell someone they're wrong, you have to lay the evidence out where they'll find it and let them come to the conclusion on their own.