one was discovering that guns and bows worked underwater. I hadn't tried to use one underwater until high teens in loch modan because it was self-evident that they wouldn't work.

lesser one was realizing races had no meaningful differences in strength, despite the obvious physics problems involved with gnome warriors - they were essentially the same as taurens.

even lesser one was realizing weapon type had no impact vs. different armor types except for mitigation - no matter if it was a bludgeon or stabbing/punturing weapon or cutting or....vs. plate or mail or ?