The Sagan Standard: Extraordinary Claims Require Extraordinary Evidence - Effectiviology
There is no clear separation between what is ‘ordinary’ evidence and what is ‘extraordinary’ evidence; the answer is in most cases subjective, though it should nevertheless be based on sound reasoning.
However, it is possible to argue in favor or against the extraordinariness of evidence, based on its quantity and quality, and based on the relevant standards that apply to the subject being discussed.
SIMILAR ARTICLES & IDEAS:
The double standard is a principle or policy that is applied in a different way to similar things, with no legitimate explanation. Thus, a double standard happens when two or more ...
The argument from a dictionary is a logical fallacy and happens when someone's argument is based, in a problematic way, on the definition of a particular term as it appears in a diction...
"We should ignore the theory of evolution because the dictionary says that a theory is just an opinion that you have about something you can't prove."
The person using this fallacy is basing their statement on a specific definition of the word "theory" while ignoring alternative definitions that will better capture the meaning of the term as it's used in a scientific context.
Not every use of a definition is necessarily fallacious. If the definition is properly justified and is selected in a properly justified way, it is generally not fallacious. However, it is fallacious when at least one of the following conditions are true: