> No other browser can practically implement or support Dart. They don't have to, they can use the Open Source DartVM as-is, in-fact this is what Google encour

> No other browser can practically implement or support Dart. They don't have to, they can use the Open Source DartVM as-is, in-fact this is what Google encourages, just like how node was able to use V8 JavaScript engine - which they've said is an example of new use cases that's possible when you create a high-performance VM. > Google's engineering could have gotten JS much farther along Lars Bak and Kasper Lund on the Dart VM are the same guys on the V8 team, who were also on the world-leading JVM Hotspot compiler that was derived from the Strongtalk VM (the fastest implementation of Smalltalk) that they created. They believe performance of JavaScript is reaching its peak and is unlikely to see another 2x improvement, JS VM's are also extremely complex as JavaScript is extremely hard to optimize. By contrast Dart is a much simpler and predictable language designed for both productivity and performance and because it was designed in-hand with the VM engineers, language features are designed in a way that performs well.