[trimbo]

Is he trying to say that everything we write today in Javascript will probably be rewritten like everything we wrote in Perl in the 90s got rewritten? That's probably true, but it doesn't mean "Javascript is the new Perl"

Perl had zero corporate investment from a application development perspective. Java had an enormous amount -- and still does. Now take a look at Javascript. Javascript is the first language since Java to have gotten this much investment across a lot of enterprises. Google, Microsoft, of course, but also the rise of startups like Meteor. For Javascript to go away the way Perl did for app development will require too much retooling.