What second garbage collector are you referring to? There aren't "two VMs inside each other" when you compile with Dart. I think Dart's biggest weakness is the

What second garbage collector are you referring to? There aren't "two VMs inside each other" when you compile with Dart. I think Dart's biggest weakness is the fact that most web developers don't understand how compile to JS languages work and go around spreading all kinds of silly FUD. I remember posting a Gist on the day of Dart's release showing the compiled runtime, and the thread exploding with hundreds of comments from people laughing at the fact that it was 17,000 lines or so, nevermind the fact that that's how every compile-to-JS language that's more than a thin skin over JS semantics works.