Freakonomics Radio

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.

The revolution in home DNA testing is giving consumers important, possibly life-changing information. It’s also building a gigantic database that could lead to medical breakthroughs. But how will you deal with upsetting news? What if your privacy is compromised? And are you prepared to have your DNA monetized? We speak with Anne Wojcicki, founder and C.E.O. of 23andMe.

As the cost of college skyrocketed, it created a debt burden that’s putting a drag on the economy. One possible solution: shifting the risk of debt away from students and onto investors looking for a cut of the graduates’ earning power.

Humans have been having kids forever, so why are modern parents so bewildered? The economist Emily Oster marshals the evidence on the most contentious topics — breastfeeding and sleep training, vaccines and screen time — and tells her fellow parents to calm the heck down.

Humans, it has long been thought, are the only animal to engage in economic activity. But what if we've had it exactly backward?