Lovey80 said:
This rubbish that America would default is a pure illusion created by those that don't want to reduce spending. The only way they could possibly default is if they CHOSE to not pay the interest so they could spend that cash somewhere else.
I'm not sure what this default comment is in relation to and I think I'm missing the purpose of your comment but I'll try to put some perspective around the US Government debt (for my benefit as well since I've never done this before).
According to the debt clock Federal Govt:
Revenue = $2.47 trillion
Current on budget debt = $16.45 trillion
Interest on debt = $0.2657 trillion
This implies a current average interest rate of just
1.61%. :O
From my understanding this low rate has largely been achieved because the Treasury had deliberately targetted near-term bonds yielding close to zero (thanks to Bernanke) rather than 10-30 year bonds. I don't know how much operation twist affected the average maturity date (but I think it is largely irrelevant).
Let's assume that the Federal Reserve actually starts to increase interest rates after 2015 and let's assume that by, say 2017, the short term rate is back to 4% with say the average bond profile of the US Govt portfolio at 5%. If the debt ceiling is
not increased at all then the interest bill will jump to $0.8225 trillion. Is this sustainable?
The US Govt projection for nominal revenue in 2017 is approx $3.9 trillion. This implies 21% of the Government budget would be used purely to pay the interest bill. [However, the same source is actually assuming that the debt ceiling will be raised with debt continuing to accumulate to just over $21 trillion by 2017 implying a $1.05 trillion interest bill or 27% of revenues
not including any repayment of principal. But we're being optimistic here

]
What level of political will is needed to achieve this? Given the current expenditure is $3.54 trillion (including interest, or $3.27 excl. interest), to not accumulate ANY new debt they'll need to cut spending by $1.07 trillion - or by 30%. If they do allow new debt to accumulate then they need to cut NOMINAL spending to $2.85 trillion (excluding interest repayments) - i.e. a nominal cut in annual expenditure by $0.42 trillion by 2017 - or by 12.8%.
So based on this default on the interest bill by the US Govt can technically be avoided but requires a significant amount of spending restraint.
BUT when people discuss the fact that US Govt default is essentially a certainty is in relation to the fact that they also have much larger amounts of unfunded liabilities (notably social security, medicare and medicaid). Laurence Kotlikoff has previously estimated the net present value of these unfunded liabilites to be $222 trillion. That means their true indebtedness is simply impossible to solve and they will default on something. Mostly it will be the "promises" made to the boomers but it will more than likely also include defaults/haircuts on bond holders.