The littlest Schemer

One of my classmates: *writing some code on the board* Okay, so I thought that this k here was a continuation, but Dan says that it isn't.
Dan: No, it's not a continuation. It's a context.
Lindsey: What's a context?
Dan: *draws a diagram on the board*
Lindsey: Well, that looks like a piece of code with a hole in it.
Everyone: Yes.
Lindsey: But that's how I think of continuations!
Everyone: No. Well...um.
Lindsey: Okay, um. What is the relationship between context and continuation?
Dan: Sounds like you have your thesis topic!

*sigh*