Are they really there after dinner? Wow. That would lead to burnout in most people I know. And I've been there, in a startup, and seen the bad decisions made after 12-14 hours of work. If you really think you have your head on straight after 14 hours, try 3 weeks of it. Or 3 months.<p>If you are trying to move faster, I'm a bigger fan of the 'work saturdays' ideology. Try to do 7-8 hours 6 days a week. That worked much better for me.