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Edited typos and grammatical errors, and rewrote the summarising sentence.
A proposal or theory is falsifiable if it can be shown to be false when it is false. A proposal or theory that cannot never be shown to false even though it is false is not falsifiable.
A proposal or theory is falsifiable if it can be shown to be false when it is false. A proposal or theory that can never be shown to be false even though it is false is not falsifiable.
For example, the suggestion that I would be a very happy if I were ten years younger is not falsifiable, and thus not worth thinking about. We have no way of knowing if it is false.
For example, the suggestion that I would be a very happy if I were ten years younger is not falsifiable, and thus not worth thinking about. We have no way of knowing if it is false.
*A. No, the dragon is invisible.
*A. No, the dragon is invisible.
*''Q. Can I tough the dragon?''
*''Q. Can I touch the dragon?''
*A. No, my dragon is incorporeal.
*A. No, my dragon is incorporeal.
and so on...
and so on...
In this way, every question can be answered and therefore the existence of the dragon is unfalsifiable. Simply put: it must exist.
In this way, every question can be answered and therefore the existence of the dragon is unfalsifiable. However, in the absence of physical or other evidence of its existence, whether the dragon actually exists or not is a matter of faith.