At first blush, it might appear that the Gorns overreacted a tad at our colony on Cestus III. After all, couldn't they have just talked to us instead of massacring us? And then I thought about it from the Native American perspective. If they knew the future, really the only move to make when the first Europeans showed up was to kill every damned one of them and make sure none ever got home (which, incidentally, is what Kirk planned to do with the Gorn--not talk, but punish). Something to ponder.