Richness of kaons

Yesterday at the talk on going from postdoc to your first tenure track job, the panel warned us not to go do the same thing we did in grad school. This shows your flexibility as a scientist, allegedly making you a abetter candidate. Today, as I watch how the long devotion to kaon physics led to great discoveries about nature, I see a different lesson. The lesson is: if you love a thing, sticking with it brings great suffering, and great reward.