[amsha]

Any programming language can do IPC, but Erlang/Elixir is the only language I've seen that makes it really easy. Erlang IPC is transparent whether you're sending messages between to local processes or remote processes. Most languages have trouble with local IPC (usually because of race conditions in data). Every other language I know of, including Go, needs custom code to handle remote IPC.

[MichaelGG]

It just seems that all the effort going into Erlang would be better spent on making the OTP stuff as a library for a popular, cross-language platform. Like the JVM (or maybe .NET.)

[querulous]

sure. we can start when the jvm can do preemptive scheduling of processes

erlang isn't great because of a single feature or library, it's great because it's designed from the ground up for one very particular role. you can't just port the otp api to go or the jvm. you need the whole foundation