"It's _clear_ that there is incredible appetite for tools that help us design reliable concurrent systems given the wild success of things like k8s, Kafka, AWS'

"It's _clear_ that there is incredible appetite for tools that help us design reliable concurrent systems given the wild success of things like k8s, Kafka, AWS's distributed systems products, etc., but why hasn't Erlang/Elixir been able to capture that share?" Becasuse Erlang is a runtime + language and Kubernetes is a neutral platform. You can build concurrent and reliable solution without the need of locking you down to a single language. Someone can start by just porting its Python code on Kubernetes to make it more reliable and fault tolerent.