Deutsch is not certain that his conclusions are true. But he does know that he has reached them in the best way: by making explanations that are hard to vary, t

Deutsch is not certain that his conclusions are true. But he does know that he has reached them in the best way: by making explanations that are hard to vary, that solve problems and that have withstood severe criticism. If any of his conjectured explanations were refuted, he would change his conclusions. If he didn’t he would be authoritarian, which he would abhor. His books are dense and benefit from multiple readings. I came back to them recently after reading Karl Popper’s works, which helped me understand his position better.