mosherose, what is your halachic source for stating that driving is no different than cooking? I know that I’m allowed to cook some items on Yom Tov, so does this mean I may also drive on Yom Tov, since the two are, as you say, “no different”?
SJS, I knew that if you were reading the thread, at least one person would know that I wasn’t talking about a cafeteria. And of course we know that extrapolation is generally riskier than interpolation, and is sometimes best left to the professionals. That’s true in engineering calculations and in halacha as well.