![Freakonomics Radio show](https://d3dthqtvwic6y7.cloudfront.net/podcast-covers/000/026/745/small/freakonomics-radio.jpg)
Summary: <p>Whether it's a giant infrastructure plan or a humble kitchen renovation, it'll inevitably take way too long and cost way too much. That's because you suffer from “the planning fallacy.” (You also have an “optimism bias” and a bad case of overconfidence.) But don't worry: we've got the solution.</p>