Talk on a New Kind of REPL

This video of Kovas Boguta’s talk on Session, a new idea for richly interacting with Clojure, devotes its first half to demonstrating how cool Mathematica is.

It turns out that Mathematica’s design has a conceptual elegance that makes it capable of a type of interaction that’s nothing short of astonishing in its flexibility and generality. Too bad it’s closed source.