Time Independence

You can reach out and touch the world from your couch. And The world can reach in and touch you. If you work in open source you work in a world where people are awake while you sleep. Thus you get email 24 hours a day, 7 days a week. There are no set working hours. It can be hard to adapt your lifestyle to this. Programmers have addictive personalities and will tend to work 18 hours at a single stretch and then do nothing for two days.