Energy yes, and focus. When an interest is lost, it's harder to focus. Like why the hell would I still have to write this algorithm, it would be exciting when I

Energy yes, and focus. When an interest is lost, it's harder to focus. Like why the hell would I still have to write this algorithm, it would be exciting when I was younger, now it's meh lets find out if there's a lib for this. And then every piece of software is garbage through lens of experience .. why would I write software at all .. of course because I need a job and money. Now I may think I'm not sharp as my young self.