Spectrum? Between? The hard thing is to be less reliant your assumptions and start figuring out what to start measuring. edit: s/ditch/be less reliant on/ ed

Spectrum? Between? The hard thing is to be less reliant your assumptions and start figuring out what to start measuring. edit: s/ditch/be less reliant on/ edit2: even that's not quite right; the derivative I'm reaching for is first testing the validity of your assumptions