I don't think we disagree about the fundamentals, but there are trade-offs there too. C extensions become harder to write for example. This is fine for somethin

I don't think we disagree about the fundamentals, but there are trade-offs there too. C extensions become harder to write for example. This is fine for something like the JVM where people stay in JVMland for the vast majority of things. I don't see why people are so insistent that other languages need to go down this route. Use one that does if you really want that stuff. Hell, use ruby then you can switch between C ruby and JRuby depending on your needs.