New research shows scientific innovation narrows as scientists age (socialsciences.uchicago.edu)

New research published in the journal Science highlights a significant trend in scientific innovation as it relates to the age of researchers. The study reveals that while older scientists excel in combinatorial innovation—linking previously unconnected ideas—they are less likely to produce disruptive breakthroughs compared to their younger counterparts, who often challenge established norms. This phenomenon is attributed to what the authors call "intellectual aging," where aging scholars gravitate towards familiar references, limiting the introduction of new ideas in their fields. The analysis, which utilized deep learning measurements on a dataset of 12.5 million researchers from 1960 to 2020, suggests that current policies around funding, publishing, and citation practices can profoundly influence this dynamic. The implications for the AI/ML community are significant, as the aging workforce in science could slow down innovation and experimentation in tech-related fields. The research emphasizes the need for new funding and support mechanisms that prioritize the engagement of younger scientists and foster unexpected collaborations, especially as global competition grows with younger scientific communities in countries like China and India. By advocating for structural changes, such as promoting intergenerational collaboration and acknowledging disruptive work, the authors seek to address the challenges posed by an aging academic landscape while ensuring continual advancement in scientific research.