Maybe: - Speaking another language than English. Language is a key to access a culture. - Being more or less aware of your neurological (isolation, attention, sleep, meditation, n-back) and evolutionary needs (fasting, exercise) to infer consequences for your own health. Tangentially related: how to read studies as a layperson to ultimately make decisions for yourself & your health? - Mastering/recapitulation of fundamentals of your craft (to stay sharp): "Study microeconomics, game theory, psychology, persuasion, ethics, mathematics, and computers." - Investing & microeconomics - Creativity: "Specific knowledge is often highly technical or creative. It cannot be outsourced or automated." - Being aware of non-conventional (and preferably non-exploitative) money making opportunities: "The Internet has massively broadened the possible space of careers. Most people haven't figured this out yet." - How to operate a search engine effectively (how to come up with the right keywords to get what you're exactly looking for) - Self discipline in a highly distractible atmosphere - Emotional self-management - Organizing: PARA system, Johnny File System, Obsidian

Reference: https://twitter.com/naval/status/1002103360646823936

Since lockdowns and covid make urban living and mass transit less attractive, driving is a skill many people should acquire.