[danpalmer]

The author does mention a Haskell/Scala like language missing from their list of languages they have written, but then they do include Erlang which I believe has pattern matching as a fairly core construct? This does lead me to doubt how much Erlang they've written, and in turn how much they've written across all of the languages mentioned.

[StreamBright]

Exactly. How can somebody claim to program in Erlang and also claim that Rust introduced pattern matching to them?

Erlang has the best pattern matching abilities and it is all around in every single Erlang code I have ever seen.