This is a reasonable perspective on their actions, but it then it still belies a huge glaring problem in Google fundamentally lacking the ability to understand which projects have the potential for scale at the desired level. It seems a standard part of a typical SV pitch deck to address the potential market and growth opportunities. Sure, they're wildly optimistic most times, but VC knows this and can price it in. But it almost seems like Google doesn't have the internal filtering mechanism necessary to perform this same function.