Neuroscientists from MIT scanned the brain of hyperpolyglot Vaughn Smith, a carpet cleaner who grew up in the D.C. area and can carry on conversations in 24 languages. Read more: https://wapo.st/3r3291c. Subscribe to The Washington Post on YouTube: https://wapo.st/2QOdcqK Follow us: Twitter: / washingtonpost Instagram: / washingtonpost Facebook: / washingtonpost