People repeat that quote a lot, but I don't think there's much evidence for it. The main thing is people have kids, and kids take time. Boom 10 years gone from

People repeat that quote a lot, but I don't think there's much evidence for it. The main thing is people have kids, and kids take time. Boom 10 years gone from high-performance productive individual-contributor work. It was uncommon for people to go back to school at a later age, but maybe not anymore?