As a former technical writer and newly-minted software engineer, Paulus Esterhazy's talk at this year's :clojureD Conference was one of my personal highlights.

My type of Easter egg, thanks to learndatalogtoday.org

Before working professionally with #Clojure I didn't get why the Clojurians Slack channel was so popular compared to other Q&A resources like Stack Overflow. Then, after some months I realised: it's a REPL.