I didn't say everything was finished. ;-) In fact, I'm not sure how to decide if something actually IS finished. Sometimes I just want to understand something,

I didn't say everything was finished. ;-) In fact, I'm not sure how to decide if something actually IS finished. Sometimes I just want to understand something, and when I get to that point, I call it done. I just like to learn. Like with my FM synths: I made a TX802 clone a long time ago (in software), and once I got to a certain point I was like, "Yep, got it." I just wanted to construct something that could implement the FM algorithms and a filter. That's all. I could have made a fully-fledged MIDI synth, but I just wanted to understand synthesis. Or with ray tracing: once I got spheres, cubes, transparency, and reflections and a simple scene text-file syntax, I was like: I should add NURBS, but that was way too complicated, so I called that "done" because I understood how it worked. You can ALWAYS keep going. Nothing is ever really done. When you lose interest, that's just your brain saying, "I learned enough, let's do something else!" Think of your brain on hobbies like a Golden Retriever: short attention span but always happy!