[CCIP]

I think you also failed to read the actual post, because Torplexed very clearly said "luck was deliberately minimized", which is an indirect way of saying "the USN didn't leave much to chance and planned carefully, so they could make sure that things would go right and the Japanese would fall for the trap." Otherwise, actual luck didn't enter into this discussion until you'd mentioned it. And I think you'll have seen some excellent posts from several people - thanks to Kazuaki Shimazaki for also bringing in a very valid point about the Washington treaties - that actually did a great job of explaining some of the very logical historical issues here.