Steven Kelly discusses designing languages for humans based on insight from cognitive and empirical research.
Stuart Dabbs Halloway, after reviewing Clojure’s syntax comparing it with Java, explains how Clojure-Java interoperability works. He then talks about the need for simplicity in languages, attempting to prove that Clojure is a simpler language, and consequently better, than Java.
Venkat Subramaniam explains some of the Groovy syntax elements and its idioms by taking Java code examples and transforming them step by step into their more concise Groovy counterparts.
Sadek Drobi talks about abstracting the control syntax (glue), giving examples from mainstream and FP languages: Null, propagating errors, events, asynchronous programming, lists, streams, channels, functors, monads, and custom abstractions.