Why must a theory or hypothesis be falsifiable to be true?

So what does it mean to say that a hypothesis is falsifiable? It means that there is some way to prove it false. But why is that necessary? The problem is that in science it isn't possible to prove a hypothesis true. read more

This is a falsifiable hypothesis, because there exists an experiment with a conceivable outcome that can show the hypothesis to be false. The experiment in question is simply looking at the clock, and the conceivable falsifying outcome is finding that the clock reads, say, 5:50 pm. This makes the hypothesis falsifiable. read more

Ultimately, I like to think of falsifiability in terms of Kuhn's account - as one of the many aesthetics that factor into theory appraisal, but not always the most important one for any given scientist or any given theory appraisal (though sometimes very important). read more