In this episode of the Three Big Points podcast, MIT Sloan professor Sinan Aral, author of The Hype Machine: How Social Media Disrupts Our Elections, Our Economy, and Our Health — and How We Must Adapt, talks about the hype loop — the echo chamber resulting from the explosive growth of social media. Aral argues that the ongoing dialogue between machine intelligence and human decision-making is changing our society at every level. MIT Sloan’s Sinan Aral discusses social media as a marketing tool that can have a positive impact — if used ethically.