if a code some sophisticated recursive parsing procedure i prefer to be alone in the room; while i see a lot of web startups work in the same room face to face

if a code some sophisticated recursive parsing procedure i prefer to be alone in the room; while i see a lot of web startups work in the same room face to face and being in privacy only by headphones. i think if you work for b2c project you should be open and extrovert; otherwise cubcles or private dark rooms are better