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[[Image:Image014.jpg|thumbnail|right|300px|Karl Popper's falsification principle posits that a scientific theory is scientific only if it is inherently capable of being proven false through empirical testing. ]]
<center>''This is a powerful concept for overcoming regret as an untestable assertion: unfalsifiable notions are a waste of time''.</center>
<center>''This is a powerful concept for overcoming regret as an untestable assertion: unfalsifiable notions are a waste of time''.</center>
A concept is '''falsifiable''' if it is possible to show that it is false if it were false.<ref>[http://www.encyclopedia.com/doc/1O87-falsifiability.html Definition] A Dictionary of Psychology, Andrew M. Colman, via encyclopedia.com</ref> '''''A concept that could not possibly be shown to be false, even if it were false, is not falsifiable'''''. Many true theories are falsifiable, such as the prediction that the sun will rise in the East tomorrow morning, because if that theory were false then it would be possible to show that it is false.<ref>If the outcome of an actual experiment has an outcome that disproves a theory, then that theory is both falsifiable and demonstrably false.</ref> That [[experiment]] could consist of waiting until the next morning to see what happens. Independent of the outcome of that test, the fact that one can devise such a test renders the theory falsifiable.<ref>Of course, the test of the sun rising in the East is conducted every morning, and has never failed.</ref>
A concept is '''falsifiable''' if it is possible to show that it is false if it were false.<ref>[http://www.encyclopedia.com/doc/1O87-falsifiability.html Definition] A Dictionary of Psychology, Andrew M. Colman, via encyclopedia.com</ref> '''''A concept that could not possibly be shown to be false, even if it were false, is not falsifiable'''''. Many true theories are falsifiable, such as the prediction that the sun will rise in the East tomorrow morning, because if that theory were false then it would be possible to show that it is false.<ref>If the outcome of an actual experiment has an outcome that disproves a theory, then that theory is both falsifiable and demonstrably false.</ref> That [[experiment]] could consist of waiting until the next morning to see what happens. Independent of the outcome of that test, the fact that one can devise such a test renders the theory falsifiable.<ref>Of course, the test of the sun rising in the East is conducted every morning, and has never failed.</ref>