Again. I think we agree. You're just making a different point than the one I was making. I was making a technical but hopefully still constructive point about what is an externality and what is not.

You seem more focused on making a case against shipping inefficient code. And you're point is a good one. It's just a little difficult to suss that out since you're framing it as standing in opposition to my related, but very different, observation about externalities.