exchemist
Valued Senior Member
As the concept of "argument from authority" is frequently used by cranks as way to assert that their notions must be given equal merit to that of proper science or other knowledge, I herewith break my rule (of leaving Fute alone in his delusions) in order to quote from Rationalwiki:
" An argument from authority refers to two kinds of logical arguments:
A logically valid argument from authority grounds a claim in the beliefs of one or more authoritative source(s), whose opinions are likely to be true on the relevant issue.
A logically fallacious argument from authority grounds a claim in the beliefs of a source that is not authoritative. Sources could be non-authoritative because of their personal bias, their disagreement with consensus on the issue, their non-expertise in the relevant issue, or a number of other issues. (Often, this is called an appeal to authority, rather than argument from authority.)"
There is other good stuff on the topic in the article as well, so I give the link for anyone who is interested: http://rationalwiki.org/wiki/Argument_from_authority
" An argument from authority refers to two kinds of logical arguments:
A logically valid argument from authority grounds a claim in the beliefs of one or more authoritative source(s), whose opinions are likely to be true on the relevant issue.
A logically fallacious argument from authority grounds a claim in the beliefs of a source that is not authoritative. Sources could be non-authoritative because of their personal bias, their disagreement with consensus on the issue, their non-expertise in the relevant issue, or a number of other issues. (Often, this is called an appeal to authority, rather than argument from authority.)"
There is other good stuff on the topic in the article as well, so I give the link for anyone who is interested: http://rationalwiki.org/wiki/Argument_from_authority