I saw you said market adjustments, which is a nice vague answer. You should be a politician. What new channels did they find, beside ones directly created by the stimulus of course. I'm not asking you for vague answers. Specifics please. There is plenty of data showing strong correlation between stimulus and GDP growth. The burden is on you to show what factors could have changed the GDP growth so drastically so we can eliminate stimulus as the cause.
As for who made hard claims, you said the stimulus did not work. What metrics are you using to support that claim?
What you want is not going to happen, because it cannot happen. I did give you one big part, but there are far too many to go over and those are the things we know of. Further, saying stimulus helped end the recession is far more vague.
The burden of proof is on you because you made the claim. You are going to try to do what religious people do, and say that me not agreeing with you is a claim, and its not. If you think the stimulus stopped the recession, then back it up. Correlation is not causation.
http://www.tylervigen.com/spurious-correlations
If you want to argue that it slowed the loss of jobs to make the adjustments easier, fine. You have still not supported your claim that it ended the recession.