Mark and I were up until 1 AM last night having a heated argument. It wasn't about the bills or the house or the chores or the car or whatever the Greatest Hits of matrimonial dischord are. No, we were duking it out over, essentially, what the Grand Unified Theory will do about the logic dichotomy of classical physics vs quantum mechanics. The reason this got so heated is that I was approaching the discussion from a philosophical, follow-the-bouncing-ball-of-logic position (which, given my background in biochemistry, is clearly rigidly locked with classical physics and Can See No Other Way) while Mark was actually, you know, arguing from the current body of scientific evidence that quantum mechanics has produced.
This spat may well have unseated the previous Geek Marriage Moment of 03 when Mark and I went at it over dolphin and monkey intelligence metrics.