A mathematician, physicist, and engineer are taking a math test. One question asks "Are all odd numbers prime?"
The mathematician thinks, "3 is prime, 5 is prime, 7 is prime, 9 is not prime -- nope, not all odd numbers are prime."
The physicist thinks, " 3 is prime, 5 is prime, 7 is prime, 9 is not prime -- that could be experimental error -- 11 is prime, 13 is prime, yes, they're all prime."
The engineer thinks, " 3 is prime, 5 is prime, 7 is prime, 9 is prime, 11 is prime, ..."
Haha right, I saw the list without really watching it and jumped to the conclusion before actually paying attention to all the days. It was before my morning coffee, if that's any excuse.
The mathematician thinks, "3 is prime, 5 is prime, 7 is prime, 9 is not prime -- nope, not all odd numbers are prime."
The physicist thinks, " 3 is prime, 5 is prime, 7 is prime, 9 is not prime -- that could be experimental error -- 11 is prime, 13 is prime, yes, they're all prime."
The engineer thinks, " 3 is prime, 5 is prime, 7 is prime, 9 is prime, 11 is prime, ..."
https://users.cs.northwestern.edu/~riesbeck/mathphyseng.html