For perspective: I read a bit in the most recent New Yorker describing a fund-raiser dinner with the president; it was $50,000 a plate and the president had one hour which equated to 1 minute per person. His staff knew he wouldn't have time to eat so he was prepared a meal he ate quickly in the kitchen beforehand. A staffer with a watch would tap him on the shoulder every 5 minutes when he needed to move onto the next table.

And 3 times as long seems perfectly reasonable to me when you're giving answers in writing compared to talking...

Is there actually some video proof that he is actually there?

Or is it just some assistant yelling from the other room "should I rephrase our standard answer on campaign reform" and his answer is "yes".

there was a jpg of BO with a mac in a windowless room

edit: link Verification photo: http://i.imgur.com/oz0a7.jpg

I expect the staffers answering the questions to put in some more time, but then that'd ruin the facade.