How CAPTCHAs work | Brian Armstrong and Lex Fridman

Lex Fridman Podcast full episode: https://www.youtube.com/watch?v=VBPTFlpv31k Please support this podcast by checking out our sponsors: - Audible: https://audible.com/lex - Skiff: https://skiff.org/lex - BiOptimizers: http://www.magbreakthrough.com/lex to get 10% off - Fundrise: https://fundrise.com/lex - Athletic Greens: https://athleticgreens.com/lex and use code LEX to get 1 month of fish oil GUEST BIO: Brian Armstrong is the CEO of Coinbase. PODCAST INFO: Podcast website: https://lexfridman.com/podcast Apple Podcasts: https://apple.co/2lwqZIr Spotify: https://spoti.fi/2nEwCF8 RSS: https://lexfridman.com/feed/podcast/ Full episodes playlist: https://www.youtube.com/playlist?list=PLrAXtmErZgOdP_8GztsuKi9nrraNbKKp4 Clips playlist: https://www.youtube.com/playlist?list=PLrAXtmErZgOeciFP3CBCIEElOJeitOr41 SOCIAL: - Twitter: https://twitter.com/lexfridman - LinkedIn: https://www.linkedin.com/in/lexfridman - Facebook: https://www.facebook.com/lexfridman - Instagram: https://www.instagram.com/lexfridman - Medium: https://medium.com/@lexfridman - Reddit: https://reddit.com/r/lexfridman - Support on Patreon: https://www.patreon.com/lexfridman