Popper's Falsificationism

Popper put forward the standard of testing scientific theory-falsification. Whether a theory can be called a scientific theory depends on whether it can be falsified.

Specifically, a scientific theory must provide a fact that can be falsified. Once the facts are proved wrong, the theory is wrong. When the facts can never be proved wrong, then the theory is temporarily correct and it has just been used.

It's a bit like evolution in the scientific sense. All kinds of human thoughts and theories are unpredictable and divergent like genetic variation, among which those that can stand the test are left behind and those that cannot stand the test are eliminated. Human science is making constant progress and making great strides.

Therefore, theories that cannot be falsified, such as fortune telling, horoscopes and religion, have nothing to do with science.

Falsificationism ends metaphysics, because metaphysics starts from an absolute axiom and then deduces other theories, but absolute kilometers cannot be falsified.