[weberc2]

"arch-rivals"? That's overly dramatic. Go and Dart are hardly competing with each other, as are ChromeOS and Android.

[iainmerrick]

I was being a little tongue-in-cheek, sure, but only slightly. They're both fairly recent languages, both representing a vision of how to fix the mistakes of the past. I'm sure the leaders of the teams see each other as rivals.