Logic Programming Language - Chapter 21

dean wanfler's piece is about thinking in scul or, thinking like you would in escul. What he's trying to do is make you recognize you already know this stuff, but perhaps haven't had the opportunity to bring it home. Rather than poking and prodding them with four loops and ifs, it's kind of like, what's our goal here? Let's figure out the flow, but not the control flow. And that kind of thinking is quite powerful.