> The nine lines contain physics, chemistry, material science, biology, medicine, geology, astronomy, engineering and computer science.

I have doubts that these 9 lines describe computer science. As I interpret it, computer science is founded on pure mathematics and is not a physical or empirical science. Computer science deals with perfect abstract mathematical objects like numbers, sets, quantification, recursion, infinities, etc.

Considering that these lines specify our laws of physics only if you grant that math is a thing, you could argue that all of mathematics gets in for free ;). Sort of like how ZFC can't encode basic logic, but you still need it for axioms to make sense

Good point - but it needs computers...

Strangely not. You can do CS on paper, no need for a single bit-flipping device. Turing did half the field in his head / a thought experiment.

And input and ouput devices ...

Then you're not really doing computer science anymore, you're doing computer engineering

OK - taken out.

It's the lowest level. Applying this to, say, medicine is like trying to understand a React app in terms of a Turing Machine. It's involved, but it doesn't help because of all of the extra rules (which are not fundamental properties of the Universe or of mathematics) that we add on top. CORS isn't a fundamental law of the Universe, but all major browsers enforce it, so you have to deal with it.

Funny enough, there's an even more related xkcd for this page: https://xkcd.com/2034/

Good one!

You are right - The text should say all "natural sciences".

The unnatural sciences are where the fun really begins.

True!