I remembered the story how Google created a 411 service that would connect to their search product. Microsoft scrambled to make something similar. At some point, Google discontinued it. The reason? By then, They had collected a lot of voice samples for training their voice recognition system. (And likely, it was easier to support a smartphone app than to support a call-in service).
When I was reading about Google Cloud Spanner, something struck me. Google Cloud Spanner was able to do what it does, not because of atomic clocks, but because Google has super-reliable private fiber that connects their data centers together. And I started wondering -- what was the hidden purpose of Google Fiber -- aside from stirring up the consumer broadband market?