What skill did you learn after age 30? I learned about both quantum mechanics and academic snobbery, the latter following from the former. But then I also learned ignorance can be bliss and decided to invent instead of arguing with fools. For the record I also learned how to be comfortable in my own skin after 30 and that I have the right to exist within a broader human collective. I also learned that when I stopped living others’ lives and begin knowing and embracing my own truth fully my reality becomes an attractor state with its own gravity.