mr. pascarella. mr. kerry. >> i thank the chairman. for taking a page out of mr. pascarella's comments i guess is that with the same time forcefulness. it is hard to make these projections that should make overtime. >> certainly is, congressman. so when you made these assumptions -- when you make these projections, what do you do quickly with great to assumptions with regard to the overall capital market structure and investments but have you, how does that play into it? >> the private saving matters. we assume private saving continues over time in a way that keeps interest rates and that we do others aims for policies. >> you may have heard -- to what they're not, for example, do you take assessment to see what the capital markets are the proverbial trillion dollars, whether that's invested or not come as bad a and look at? >> we're looking more at the 40 year for 30 or 20 or averages when you mature projection. with the updating august we're looking at the current state of the capital market. >> your chairman bernanke say some statement where he said jamie diamon