I couldn't agree more. To add slightly, I think the intensity and novelty of what you are doing are probably the biggest factors in how you spend your 10000 ho

I couldn't agree more. To add slightly, I think the intensity and novelty of what you are doing are probably the biggest factors in how you spend your 10000 hours. I know I learn more from spending 1 hour trying to solve a new problem I have never tackled before than spending 10 writing yet another CRUD procedure or yeat another GUI for the database. Similarly, I improved my running faster (back when I was still running regularly) with runs that challenged me and on varied terrain more than I did from yet another tread mill run at a regular pace.