>1) If it works for some of the most successful tech companies on the planet (Google / Facebook / Amazon,) why can't it work for us? Have these companies alway

>1) If it works for some of the most successful tech companies on the planet (Google / Facebook / Amazon,) why can't it work for us? Have these companies always been open-office, or is this something they've recently moved to? These companies have been successful for years and can probably absorb the productivity losses an open office generates for a while.