A groundbreaking new study claims to have found a way for a fully paralyzed person to communicate entirely via thought. But as we learned in an episode earlier this year, the scientists behind it have a checkered past. This episode was produced by Miles Bryan, edited by Matt Collette, engineered by Efim Shapiro, fact-checked by Tori Dominguez and Laura Bullard, and hosted by Sean Rameswaram. Transcript at vox.com/todayexplained Support Today, Explained by making a financial contribution to Vox! bit.ly/givepodcasts Learn more about your ad choices. Visit podcastchoices.com/adchoices