The Watchmaker: my fav argument

[Angrboda]

Argument of the Beard

(also known as: fallacy of the beard, heap fallacy, heap paradox fallacy, bald man fallacy, continuum fallacy, line drawing fallacy, sorites fallacy)

Description: When one argues that no useful distinction can be made between two extremes, just because there is no definable moment or point on the spectrum where the two extremes meet.  The name comes from the heap paradox in philosophy, using a man’s beard as an example.  At what point does a man go from clean-shaven to having a beard?

(link)