I don't know jack (yet) ⇝

My head is still spinning from Tim Caswell's lightning talk at Big Ruby where he showed off jack, his new programming language. (I'll post a link to the video when it's available. The gamepad-driven demo was amazing.) The simple yet powerful syntax looks like an excellent starter language for new programmers. I'm intrigued especially at the function syntax:

{arg1, arg2, arg3| body } is Function --> true

I want to see how my seven-year-old picks up something like this since she's shown interest in Ruby already.