> I guess Google’s years of experience led to the conclusion that, for software development to scale, a simple type system, GC, and wicked fast compilation speed are more important than raw runtime throughput and semantic correctness.

I'm a fan of Go, but I don't think it's the product of some awesome collective Google wisdom and experience. Had it been, I think they'd have come to the conclusion that statically eliminating null pointer exceptions was a worthwhile endeavor, just to mention one thing. Instead, I think it's just the product of some people at Google making a language they way they wanted to.