according to what ordering? How do you know it's least?
Is leastness important?
-## Q: I still don't fully understand the Y combinator. Can you
- explain it in a different way?
+## Q: I still don't fully understand the Y combinator. Can you explain it in a different way?
Sure! Here is another way to derive Y. We'll start by choosing a
specific goal, and at each decision point, we'll make a reasonable