It’s the relativistic velocity addition formula, which makes zero sense in non-relativistic scenarios, but it’s useful because it caps the velocity addition to just below c.
EDIT: I misread. Yeah, even if correct you can’t just write down a formula and use it without justifying what it does or where it comes from.
You absolutely need to stir pasta while it’s cooking. And once you get it out, if you’re not going to add sauce right away or at all, you absolutely need to add some olive oil. If you don’t stir it while it’s cooking, it will get cooked unevenly. If you don’t add olive oil, it will clump up and become basically impossible to eat properly.
You’re absolutely right. I probably should have specified that in this context, that formula comes completely out of the blue and is not really appropriate, so I feel like in this case it warrants a bit of explanation.