It is nice that he mentioned Light Table. I would not be surprised if Swift ends up really benefitting Clojure adoption indirectly. I think one of the big hangups for newcomers is that, if you don't have experience with a Lisp, it's often difficult to understand the benefits of interactive development. If a large amount of new programmers become exposed to it, they'll be more open to other options that provide simila…
Also with Javascript and browsers' built in consoles you can have good times developing interactively