[mark_l_watson]

cL-permutations looks nice!

As an old Lisp programmer, it makes me feel good seeing CL applications.

I broadly agree with your points in this conversation but I am downloading the Engine right now. I also did a ten day free trial of Mathematica recently. I have a little time to spare to kick the tires.

BTW, in the same way that Keras has functionality to download some standard data sets and cache them locally, I would like to see more CL projects do the same. Julia has a few such packages. Having easy to access data is a selling point for Wolfram Language.