To put into perspective check this fragment of interview (http://www.youtube.com/watch?v=hE7k0_9k0VA#t=18m25s http://www.youtube.com/watch?v=hE7k0_9k0VA#t=18m25

To put into perspective check this fragment of interview (http://www.youtube.com/watch?v=hE7k0_9k0VA#t=18m25s http://www.youtube.com/watch?v=hE7k0_9k0VA#t=18m25s) by Peter Norvig. What he is saying is there is a trade-off between using open space vs. cubicles.