You cannot prove a hypothesis with 100% certainty, that is true. But you can falsify it – with even a single counterexample – and then you are certain it is fal

You cannot prove a hypothesis with 100% certainty, that is true. But you can falsify it – with even a single counterexample – and then you are certain it is false. Anything else is pseudoscience. And it's particularly not okay to make generalizations about people. That's how you get sexism, sexism and other bigotry.