That's like a constant cycle for me. The stuff that grows from it is the things that keep growing and sticking around and I don't find any other literature directly replacing it or enhancing it. When I do find things that replace a bunch of my work I'm thrilled because I don't have to do that now and I can focus my energy on the other threads. Every once in a while I get competitive and it hurts, but if I'm being honest if I find something that gets me that way I've got a special appreciation for that moment.