I don't think it will change everything overnight, don't get me wrong.

VOA: standard.2010.04.03

The idea of probability theory is that no, you can't change things, there are all these objective laws of probability out there that guide everything.

而概率论的观点是,不,你无法改变事物,世间万物遵循客观的概率,它们即是定律

耶鲁公开课 - 金融市场课程节选

It's not about, as I said and I think you'll hear the President say, we don't expect that everything will change after one speech.

WHITEHOUSE: Press Briefing

After all, the electorate wouldn't be clamoring for change if everything were great, if easy credit remained there for the asking, stocks were hitting new all-time highs and speculators were still flipping Las Vegas condos.

WSJ: How Obama Can Fix the Economy

Florida could change everything, even if we don't notice for a while.

CNN: Florida is a tie-breaker but no game-ender