[schiptsov]

This guy, it seems, still don't realize that there is no silver VM^Wbullet and never will be, and choosing appropriate tools for each particular task is still absolutely necessary. ^_^

And that clarity, readability and common idioms of a language matters more than its runtime, and that 100k of Java or Javascript code is not the same pile of crap as 100k of Python or Ruby code, assuming that it is not specially obfuscated. ^_^

Fast prototyping that some stacks (VM+frameworks) provide has no correlation with real production environments where you must consider a system in terms of data-flows, content types, separate storage for different types and flows of data, different levels of caching, and so on.

And, of course, in most cases, serving a content from a file on modern FS with help of a little C code is much faster end more efficient than serving the same content with some cool VM involved. ^_^