RULE 12 Don't fight with younger people, even if you're right, which you probably are. When they tell you outrageous things, say, "That's very interesting, I'll have to think about it." These people will be writing your obituary, and why give them a reason to put "contentious" or "embittered" in the second paragraph or accusations of cultural appropriation or insufficient anger at power imbalance. If you enjoy dispute, go after your elders if you...