letting the debt skyrocket the way it does in the alternative scenario will ultimately be very, very darjing to the economy and unsupportable in the end. one can both provide near-term support and put the economy on a sustainable medium-term budget. on a sustainable medium-term and long-term path. to do that requires the fiscal restraint take effect slowly. but amount to a very large change from current policies. by the end of the decade. this is not as we've said a number of times before, there's no substantive advantage to waiting to decide what policy changes we will make. to the contrary, the longer we wait as a country it make the sort of choices we have to make, the harder it will be to make them. because more debt will have accumulated. because people will have less time to plan how they will react to these various changes. there's no substantive advantage to waiting to make decisions. but on the issue of how quickly those decisions should take effect, how quickly one wants taxes or spending or both to change, that's a more complicated question and that's where you come to this tradeo

so these accommodative policies are not in that sense too darjs to play with a little bit further. >> very, very good points. good points. >>> well, singapore -- well singapore is playing to a largest gathering of young presidents. the ypo consists of 19,000 ceos and presidents. brian sullivan is at the event halfway across the world from where we like him to be here in englewood cliffs. >> reporter: they're happy to get me out of the office. he's the owner of facebook, owner of 5% of the company and we had a chance to not only do a fireside chance with him in the ypo meeting but we grabbed him afterward for his first ever tv interview. he's a very shy, very unassuming gierks very quiet, very thoughtful, has never done tv. we pulled him aside, convincehood imto do a little questioning for cnbc and the first thing i asked him is how big does he think facebook can be. here's what he said. >> if you look at the company itself and the space it's the very early beginningsful what facebook has really done today is allows us to have identity on the web. now there's our pass pord. >> is it go