No. 470 — May 1, 2022 Welcome to Sunday Brain Food: a weekly newsletter full of timeless ideas and insights for life and business. (Was this shared with you? Sign up here.) Insight “In July 1968, four pairs of mice were introduced into the habitat. The habitat was a 9-foot (2.7 m) square metal pen with 4.5-foot-high … Continue reading The Mindset Gap