I do this too. Once it becomes a habit of life I can't imagine not doing it. I know so much random math, stats, coding, ML, just from grabbing a textbook and wo

I do this too. Once it becomes a habit of life I can't imagine not doing it. I know so much random math, stats, coding, ML, just from grabbing a textbook and working through problems. People think it means you are a natural, or it's easy. For me, that couldn't be further from the truth. I'll spend half a Saturday stuck on some really basic problem. It's frustrating, but as the years go by the knowledge compounds. Even if the days feel futile.