All I have to do is start working on a problem. After a short time I'm oblivious to what's around me. I often "listen" to music but that's just make the offic

All I have to do is start working on a problem. After a short time I'm oblivious to what's around me. I often "listen" to music but that's just make the office noise less obtrusive - after a while I don't hear the music.