argumentum ad ignorantiam
grrlscientist | September 13, 2009tags: Dr. Neil deGrasse Tyson, UFO, space aliens, argumentum ad ignorantiam, appeal to ignorance, AMNH, streaming video
The argument from ignorance, also known as argumentum ad ignorantiam ("appeal to ignorance"), argument by lack of imagination, or negative evidence, is a logical fallacy in which it is claimed that a premise is true only because it has not been proven false, or is false only because it has not been proven true.
The argument from personal incredulity, also known as argument from personal belief or argument from personal conviction, refers to an assertion that because one…