Consider that everything you think you know might be wrong.
We used to know that the Earth was flat. We used to know that the Earth was the centre of the universe. We used to think that humans were separate from the other animals.
We used to know that human flight was impossible. We used to know that running a mile in under four minutes could not be done. We used to know that communicating face-to-face in real time with a person on the other side of the planet was out of the question.
All of these conclusions were arrived at by intelligent and reasonable people. But, the problem with reason is that it operates within a paradigm; and while paradigms try to articulate reality, they are independent from it. . .