https://courses.vcu.edu/PHY-rhg/astron/html/mod/006/index.html"A Non-falsifiable Statement is something that cannot be verified"
Wrong. A non-falsifiable statement is something that can not be falsified. Hence the term non-falsifiable. A statement that can not be verified is actually called... non-verifiable.
"The three examples that you just gave are actually falsifiable statements"
Wrong again. They are only verifiable.
Try to prove these statements false:
Black Swans exist on earth.
Water exists on earth.
There exists on earth at least one living, breathing Tyrannosaurus Rex.
How would you falsify those statements?
If there were no evidence for the existence of black swans (or water) it would be a Non-falsifiable Statement.
As I explained Tyrannosaurus's are extinct. The method to deduce their extinction is falsifiable evidence of their non-existence. The Earth is a finite space and something the size of a Tyrannosaurus would be easily found.
How would you verify their opposite?
Black Swans do not exist on earth.
Water does not exist on earth.
There does not exist on earth at least one living, breathing Tyrannosaurus Rex.
Black Swans do exist. This could never have been proven false, only proven true when a black swan is found. Even before black swans were found, it never was falsifiable, only verifiable.
Black Swans do not exist. This could never have been proven true, only proven false when a black swan is found. Even before black swans were found, it never was verifiable, only falsifiable.
In summation,
"There are black swans" is no more falsifiable than "There are no black swans" is verifiable.[/QUOTE]
If you find one black swan the statement that they do not exist was falsified. Something can be falsified and verified. Black swans were verified to exist so therefor it falsified their non existence.