Hello khallow,
"That isn't the point of debt. Debt is borrowing money or resources now and paying for them with future income or resources. So you can borrow more to produce more, but as a consequence, you will be producing less in the future for a period of time.
Let's put this into perspective. Suppose the interest rate on that public debt was very considerable 100% per year for ten years and adjusted for inflation. That is, every dollar you borrowed, you had to pay back each year for ten years. According to your view, you get massive creation of "output" in that first year followed by ten years of lost "output" of the same amount each year. I'm sure it'd be great to be the lender, at least till year two or so when the borrower and economy collapses without paying back enough of the loan to make it worthwhile."
That can be how debt works if done badly, but it isn't supposed to be (if you're a sensible borrower).
Let's say I am a writer (I chose a profession that doesn't use any physical resources of note). I have a crappy biro and some cheap paper. I can write 1000 words per day, and have trouble with QC (since I can't use software spell checks, etc.), so I can sell my work for $100 per day.
I borrow $1000 to buy a computer and a printer.
I can now output 10,000 words per day, which are off higher quality. I can earn (roughly) 10 times as much per day. I can sell my work for $1100 per day.
I can pay of the debt and easily have plenty left over.
The general amount of productivity in society has increase by 10 times, and I have only 10 days work required to pay of the debt.
I have obviously exagerated the numbers here, but most debbt is like this - borrowed to invest in improvements. Recessions tend to happen when large amounts of a nation's capital are put into investments that are not productive, and so the debt (in the aggregate) cannot be paid back by the returns.