This is the question asked by John Cook on Twitter. He lists responses from different people:
- R
- Version control
- Linear algebra
- Advanced math
- Bayesian statistics
- Category theory
- Foreign languages
- How to not waste time
- Women
Mine are: quantum mechanics, Python, cooking, the language of philosophy.
What learning curve do you wish you'd climbed sooner? Give reasons and stories if you feel like it. Do you think other people should climb the same curves?
Vicarious regrets: Negotiating salary. Basic investing. Budgeting well below ones means. Sampling many subjects and careers to see how they fit.
Personal regrets: Ability to make good impressions on non-nerds (e.g. dressing well). Meeting lots of people.