Erlang VM No global data No mutable data Pattern matching and guards Compiler and interpreter Hot upgrading of deployed code The Banarama of languages read more Utterly Terrifying Fault-tolerant Massively scalable Concurrent Soft real-time Open. Telecom. Platform. read more Alien Technology Functions and variables with separate namespaces (LFE is a Lisp-2) Low-hygiene Macros Homoiconicity In-REPL Function and macro definitions Easy borrowing from decades of alien software libraries read more Language Lab All the benefits and powers of a Lisp combined with the efficiency of the Actor Model and Erlang's light-weight processes. Experiment with creating distributed systems. Easily write your own compilers. Create DSLs on-demand. Take advantage of 1000s of cores without having to change your code.