Q: Is Clojure bootstrapped on something other than JS or JVM or CLR?

A: No, and don't waste your time on this talk if you already have watched any of Rich Hickey's talks, this is an ego-stroke at best that introduces no new solutions to any problems. It's an hour and a half of 'Hey look what clojure can do', and 'Gee, our documentation isn't great'.

Maybe someday Clojure will have something like the Shen project has with KLambda. A tight, core language implementable in any language, and a language library built on top of that core language, agnostic of the implementation it's derived on.

If Clojure had gone this route, we could basically have Clojure on any platform capable of parsing and modifying S-Expressions.

Maybe someday!