The numbers just don't add up. Even if you treat this stuff on the most charitable of terms, dollar for dollar, way too much of the hole almost certainly remains unfilled. That's the thing about "stimulus" talk; for one thing, people seem to be viewing it as some kind of addition without thinking it all the way through first. You have to begin by sizing up the gross economic deficit it is being haphazardly poured into – with an additional emphasis on "haphazardly." Everyone forgets the last time when the government tried this, impressing markets and the media with its huge numbers, that after it was over its proponents complained how it wasn't big enough. Paul Krugman most of all (seriously, in November 2009, long afterward, he wrote Obama's plan was awesome but it wasn't "nearly enough"). If you don't know how big is the abyss, if you can't even size the thing up properly while it's unfolding , how can you even attempt ...
"La verità passa per tre gradini: prima viene ridicolizzata, poi viene contrastata, infine viene accettata come ovvia" (A. Schopenhauer)