Sure, but 'F' is a lot shorter than "whichever unit doesn't kill the dinosaur."

Weird, my browser somehow doesn’t render the title as “T. Rex Had a Body Temperature of 97 Degrees whichever unit doesn’t kill the dinosaur”. It just leaves that last part out, making it even shorter than “F”.

	▲	verelo 2 days ago \| parent [-]
		"T. rex was warm" is even shorter again. I think we’ve established that omitting information saves space.