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The Concept Of Extraordinary Claims
- Instead of viewing claims as either ordinary or extraordinary, it’s better to view them as ranging between these two ends of the spectrum, based on how likely they are given everything that is known on the subject.
- It can be difficult to define the exact threshold on the ordinary-extraordinary spectrum that a certain claim needs to cross before it’s considered extraordinary, it’s generally preferable to focus on how extraordinary a claim is instead, and to expect a stand of proof that matches that degree of extraordinariness.
- A claim should generally not be viewed as extraordinary simply because it’s novel, but rather because it contradicts existing evidence.
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The Sagan Standard
The Sagan standard is related to astronomer Carl Sagan, who stated that “extraordinary claims require extraordinary evidence” (a dictum abbreviated as ECREE).
This means that the more unlikely a certain claim is, given existing evidence on the matter, the greater the stan...
79
661 reads
Ordinary And Extraordinary Claims
Based on the Sagan standard, if someone claims that they came across a unicorn during they commute, they would be expected to brig stronger evidence in order to verify that claim than if they claimed that they came across a horse.
This happens because there is significant evidenc...
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323 reads
The Concept Of Extraordinary Evidence
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 extraordinarin...
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192 reads
How To Implement The Sagan Standard
The more unlikely a claim is, the more supporting substantial the evidence that you should require before accepting it as true.
When presented with a certain claim, you should expect the strength of evidence that is used to support it to be proportional to how unlikely tha...
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226 reads
Don't Simply Ignore Extraordinarily Claims
Overall, the concept of ECREE does not mean that claims that contradict the current scientific consensus should always be ignored, or that claims that support the consensus should be automatically accepted. Rather, ECREE simply suggests that the likelihood that a certain claim is true, b...
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163 reads
MORE LIKE THIS
Ordinary And Extraordinary Claims
Based on the Sagan standard, if someone claims that they came across a unicorn during they commute, they would be expected to brig stronger evidence in order to verify that claim than if they claimed that they came across a horse.
This happens because there is significant evidenc...
The Sagan Standard
The Sagan standard is related to astronomer Carl Sagan, who stated that “extraordinary claims require extraordinary evidence” (a dictum abbreviated as ECREE).
This means that the more unlikely a certain claim is, given existing evidence on the matter, the greater the stan...
The Concept Of Extraordinary Evidence
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 extraordinarin...
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