A while back (I'd guess about 15 years ago, so suddenly I feel old), Jack Ganssle (http://www.ganssle.com/tem-subunsub.html http://www.ganssle.com/tem-subunsub

A while back (I'd guess about 15 years ago, so suddenly I feel old), Jack Ganssle (http://www.ganssle.com/tem-subunsub.html http://www.ganssle.com/tem-subunsub.html) said he was selling his embedded tooling company, SoftAid because after doing it for so long, he had gotten tired of "pushing the same bits around." At the time, I simply couldn't understand that. Sure, I hadn't been writing code as long as he had, but I couldn't imagine enjoying anything more than that. I absolutely loved twiddling bits and watching mechanical systems do what my code told it to. Fast forward to now. I still really enjoy software/hardware/mechanisms/coding/design etc., but if I had to give it up tomorrow, I know I could find something I love just as much. It's a really big world and there are a lot of sandboxes to play in.