Injecting insulin is far more precise in the sense of, what you want to deliver you deliver. You don't have to deal with any questions of how much is delivered through the lungs.

We've got a very precise idea of how far we can go and what we can budge on.

ever go that far.

There's no sense in being precise when you don't even know what you're talking about.

We've tried a lot of things. Surgery's gotten better and we deliver the radiation in a more sophisticated way. We've gotten better at handling the side effects of chemotherapy, and still the impact on the disease has been relatively small.

An approximate answer to the right question is worth far more than a precise answer to the wrong one.