The startup costs to using a module loader are the same startup costs to using Dart. That's the point I'm making, Dart is an alternative to JS tools, but it's s

The startup costs to using a module loader are the same startup costs to using Dart. That's the point I'm making, Dart is an alternative to JS tools, but it's still a choice that has to be explicitly made. You don't get Dart for free in any browser but Dartium.