Clarification: "Should they not try and spot-optimize common cases where they can, just for the sake of predictability? No, I don't think so." I meant they "sh

Clarification: "Should they not try and spot-optimize common cases where they can, just for the sake of predictability? No, I don't think so." I meant they "shouldn't not", as in I don't think it would make sense to do otherwise from what they're doing