Digital devices rob us of our attention, creativity, and, some studies show, our mental health. We ask psychologists and authors if smartphone and social media usage has triggered a national health crisis — and what we can do to free ourselves from the allure of modern technology.

Silicon Valley and Wall Street are obsessed with Bitcoin and its underlying technology called blockchain. Boosters say it'll fix everything from elections to shipping to identity theft. But what exactly is blockchain, how is it being used, and is the hype really worth it?

Amazon might become the first trillion-dollar company in the history of the world. Has the Everything Store become a dangerous monopoly threatening the U.S. economy?

In the last 18 months, Facebook has gone through one of the worst public relations crises of any major tech company. In this episode, two guests debate whether Facebook is fixable, or whether its business model is designed to sell us lies. Read more here.

On Crazy/Genius, host Derek Thompson asks big questions about everything from online dating to blockchain to space exploration. Is technology moving us forward or backward? How did we get here — and where are we headed? Starting May 10. Music by Breakmaster Cylinder. Learn more about your ad choices. Visit megaphone.fm/adchoices