I think you're a little too excited about JVM's to see the point of the comment. The parent comment included a statement that code in any language can scale without dataflow dependencies. I said it actually depends on the implementation of that language as some don't realize that potential or even defeat it entirely. Gave an example with GIL followed up by examples in BEAM and JVM where implementation mattered.

Far as JVM vs BEAM, it's actually orthogonal to my comment as it would only support that implementation decisions matter for scalability on top of language's inherent traits. You've been arguing that yourself except on other side.