"Master" is a strong word - feeling more like a perpetual student than approaching mastery. Before I became a developer, learning to play music. There is almos

"Master" is a strong word - feeling more like a perpetual student than approaching mastery. Before I became a developer, learning to play music. There is almost nothing more rewarding than the ability to speak a non-verbal, near-universal language in order to express yourself. Private pilot's license. Podcasting. Understanding more about cognitive bias. Rhetoric and logic. Philosophy. (Not sure you can master these last two within a lifetime.) Fatherhood and being a good husband to my wife. These are easily the most rewarding experiences of my life.