See my reply to the discussion on a "thoughtful response" in another thread.

But the proposal to send every couple $50,000 0r $100,000 doesn't work. I might even agree that such a one-time stimulus would actually revive our economy. But unfortunately $50,000 for every to people in America would be an expenditure of $5.5 trillion. $100,000 per two people would be $11 trillion dollars--that's would result in an immediate doubling of the U.S. national debt.

And we do know what happened to the money spent on tax rebates earlier this year. The statistics show that most people either paid down existing debt or saved the money. Neither had the planned effect of stimulating the economy.