Rich presented Clojure to our local software development group in 2008, I've been working with Clojure (both as a hobbyist and eventually professionally) ever since.

https://www.youtube.com/watch?v=dGVqrGmwOAw

At that time I had been working with Java for years, both the conciseness of the code and the interactivity were flat-out amazing to me. It's saved me time and made me 100 times more productive.

Congratulations to Rich, I am also extremely grateful for his work!