So the discussion continues (in comments here, and a post and comments here), but I think the TL;DR version of the Great Smith-Sadowski Row of 2015 is this:
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Nonlinear Signals of Unusual Size (NSUS's)
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So the discussion continues (in comments here, and a post and comments here), but I think the TL;DR version of the Great Smith-Sadowski Row of 2015 is this: