The Dilemma of Self-Contradiction in Karl Popper

I was so impressed that you got to interview Karl Popper. I expected him to be really frail and dottering. And he was like a force of nature. He was this feisty, belligerent guy. His big idea is you can't be certain of anything. It's almost comical because his philosophy is anti-dogmatism,. Both in the realm of science and even more so in the social and political realms.