When did those ideas become widespread?<p>My parents, both scientists educated in the 1950s, never heard of them. They followed a pretty simplistic notion of scientific methodology, that mainly revolved around intellectual honesty: Report everything that you observe, and be willing to change your beliefs when confronted with new information.<p>I never heard of Popper or Kuhn until after I finished my science degree, and then, only in the context of debates about evolution versus creationism. But I don&#x27;t know if I&#x27;m typical or not.