It's a skill. The better you are at logic and the more you interrogate your philosophical foundations, the more of a leg-up you have. I got lucky by being born as a stereotypically logical autistic person and growing up as an incredibly introspective child. Thinking a lot about why you think what you do, what you might be wrong about, and planning out the kinds of responses that you should have if you get new information really help. It also helps to have a profoundly strong belief that you are able to change your mind easily; simply believing that makes it more likely to be true.