Fallacy of grayness

Overview
The fallacy of grayness is the idea that things which are "grey", i.e. not clearly one way or the other (good/bad, true/false) are all more or less equivalent. The fallacy lies in the fact that grey is not itself a third discrete choice; it is a range, within which things may be much closer to either absolute (e.g. almost certainly true, or almost certainly false) than they are to each other.

Related

 * slippery slope: permitting something at the near (possibly tolerable) end of the "grey" area will lead inevitably to things at the far (intolerable) end
 * fallacy of moderation: another "calibration error" fallacy

Discussion

 * 2008-01-07 The Fallacy of Gray