Last I heard Jack was working 16hr days, 8 at Twitter and 8 at Square. I'm sure it was an exaggeration, but any amount of working day after day at an org gives

Last I heard Jack was working 16hr days, 8 at Twitter and 8 at Square. I'm sure it was an exaggeration, but any amount of working day after day at an org gives you the leverage you need to provide vision. Twitter will be fine.