Lots, but these 3 points stand out for me: * that there are too many things to build and too little time, so don't code for the sake of coding, but solve probl

Lots, but these 3 points stand out for me: * that there are too many things to build and too little time, so don't code for the sake of coding, but solve problems and touch more lives * that I could have supplemented my coding skills with business skills, and built something that made me money * that life is short, and coding isn't the only thing to do --- Bonus tip: strong CS fundamentals, math > new hip language, new framework