Originally posted by: Darwin333
The point I am trying to make is I think your analogy is oversimplified. The internal debt we hold isn't like my wife loaning my $20 out of her (or the families) disposable income and therefor not effecting future obligations. We are spending money that must be paid back in order to meet our obligations. We will either have to raise taxes or issue bonds to cover it and unfortunately, I don't see how we could possibly raise taxes enough.
No, it doesn't have to be paid back, nor would you ever pay it all back. Government debt can (and will) be rolled over in perpetuity.
Furthermore, the idea that borrowing money from ourselves is borrowing future productivity from our own country is a completely nonsensical idea. We don't have a DeLorean, and I'm not even sure half the cars we make can get up to 88 miles per hour anymore regardless.
I think it's a really vital point to make that a lot of people miss, because they think of public debt as something akin to private debt: our children will get to consume whatever it is that they produce, nothing more, nothing less, the same that we do today. No matter what debts we run up internally in this way, there's simply no way that we could create a situation in which our children would somehow have to sacrifice their productivity to 'pay back' people here in 2009 for the productivity we somehow borrowed. (how would they even if they wanted to?)