Crubit and autocxx have, afaict, less investment than Carbon, and all three are collaborative. There's not certainty that crubit or autocxx will succeed. If the

Crubit and autocxx have, afaict, less investment than Carbon, and all three are collaborative. There's not certainty that crubit or autocxx will succeed. If they do, awesome. If they can't, Carbon exists. All three are experimental all three are incomplete in many ways. None are side projects.