IMHO a more fundamental difference is that because of pattern matching and pipelines you'll write code in a very different way and any expectation that Elixir a

IMHO a more fundamental difference is that because of pattern matching and pipelines you'll write code in a very different way and any expectation that Elixir and Ruby are similar will evaporate before the end of the very first day. However many Class.method names in Ruby's standard library have a match as Module.function in Elixir, by design, to ease the migration of developers. Language developers take note, copy from the language you want to lure developers from.