[cromwellian]

Even boring problems at Google are done at mind boggling scale, but the work that Google is doing on machine learning alone, what Ray Kurzweil is trying to do, is one of the hardest problems in history.

The everyday things you use, like Google Maps, have incredibly sophisticated pipelines behind them. I'm not talking about serving up image tiles, I'm talking about the software that processes satellite, aerial, and street view imagery and stitches everything together into a coherent whole, while doing things like using machine learning to recognize signs, text, objects, building outlines, etc.

It all works so smoothly and so well most of the time that people don't even know all of the work that goes into it. Just parsing a question for meaning in search is a very very hard problem. What Siri does is kind of a joke compared to what's really required to make things work as they should.