From Rick Robinson, on the Futurists yahoogroups list:
"I'm reminded of how someone described the REAL structure of scientific revolutions. A new paradigm comes along. Only a minority of established, middle-aged scientists buy into it, but it becomes the vogue for new people entering the field. The older paradigm retains its supporters, but it gets few recruits. In a few decades, Old Paradigm conferences are full of 70-year-old professors emeritus, and no young new PhD would be caught dead there. When the emeriti die off, the old paradigm dies off with them, and the new one rules."
"I'm reminded of how someone described the REAL structure of scientific revolutions. A new paradigm comes along. Only a minority of established, middle-aged scientists buy into it, but it becomes the vogue for new people entering the field. The older paradigm retains its supporters, but it gets few recruits. In a few decades, Old Paradigm conferences are full of 70-year-old professors emeritus, and no young new PhD would be caught dead there. When the emeriti die off, the old paradigm dies off with them, and the new one rules."