Re: @I guess that's economists for you
The author is a philosophy major.
Really? When The Git was in Big School, logic was taught by a philosophy major. Unsurprising really since logic has been an important part of philosophy since at least Aristotle's day over 2,000 years ago. There were quite a few computer science and mathematics students in that class. Perhaps when you get to go to Big School you will learn about such things.