Well, yeah. What would prevent a language from scaling?
The reason you'd ditch Java or PHP is because they are lacking a lot of higher-order constructs. (PHP epsecially. Statically-scoped variables? First class functions? An object system that isn't a hilarious joke? Unicode support? PHP doesn't have 'em.)
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People still consider PHP and Java for rewrites? Usually that's what you rewrite out of, not in to.
Java works pretty well for highly scalable network backends actually.
"X doesn’t scale" is a myth.
http://news.ycombinator.com/item?id=160730
Stop. There's nothing wrong with PHP, and it's proven to scale.
Well, yeah. What would prevent a language from scaling?
The reason you'd ditch Java or PHP is because they are lacking a lot of higher-order constructs. (PHP epsecially. Statically-scoped variables? First class functions? An object system that isn't a hilarious joke? Unicode support? PHP doesn't have 'em.)