The heart of data science is designing instruments to turn signals from the real world into actionable information. Fighting the data providers to give you those signals in a convenient form is a losing battle, so the key to success is getting comfortable with messy requirements and chaotic inputs. As an engineer, this can feel like a deal with the devil, as you have to accept error and uncertainty in your results. But the alternative is no results at all.

— Pete Warden, former Apple engineer and current CTO of Jetpac, to O’Reilly Radar. Embracing the Chaos of Data.

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