And 2017 was _late_ in their pivot. They'd been active for much, much longer. Last winter break I sat down to watch every GTC keynote, going back to 2009[1]. Even then, he's talking about expanding to non-graphics workloads. Google's GPU paper[2] just slotted naturally into their existing narrative and were happy to support it. "fortune favors the prepared" as they say.
[1]: https://www.youtube.com/watch?v=fYuH2Kl_b98
[2]: https://scholar.google.com/citations?view_op=view_citation&h...