I don't really get what is this OOP propaganda you're referring to. What I mean is that "build-anywhere run-anywhere" sounds really misleading, almost like Java

I don't really get what is this OOP propaganda you're referring to. What I mean is that "build-anywhere run-anywhere" sounds really misleading, almost like Java's write-once run-anywhere. Of course you can always say "real programmers do not write ... blablabla" (in other words No True Programmer fallacy) but this is not solving anything, isn't it? I mean, let's make a sufficient abstraction that will allow real cross-system development?