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About this quote

What does it mean?
Lack of evidence for something does not prove that it does not exist.
In plain terms
Just because you cannot find proof that something is there does not mean it is not.
What can you take from it?
Absence of evidence is not proof of non-existence.

Where it applies

  • scientific inquiry
  • legal arguments
  • everyday reasoning

Putting it to work

  • do not assume non-existence
  • seek more evidence

Questions to consider

  • When does absence of evidence count?
  • How do you prove a negative?

Another view

Sometimes absence of evidence does suggest absence when detection methods are adequate.

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