Pet peeve phrases:
"Data is the new oil."
"volume, veracity, variety, velocity"
"80% of data science is data cleaning."
That image showing model building being a tiny component of a machine learning system.
Any other overused truisms that you wish would go away? 
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Agreed. What that visualization also misses, is that model-building inspires so much data analysis, problem understanding, and human intuition-building for the entire system–all of which are invaluable, and justify creating/maintaining the system in the first place.
Thanks. Twitter will use this to make your timeline better. UndoUndo
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