William James Sidis went from child prodigy to recluse. Try https://brilliant.org/Newsthink/ for FREE for 30 days, and the first 200 people will get 20% off their annual premium subscription. Note: Einstein's estimated IQ of 200 was cited by Amy Wallace in her biography of William James Sidis I highly recommend: The Prodigy: A Biography of William James Sidis, America's Greatest Child Prodigy by Amy Wallace: https://www.amazon.com/Prodigy-Biography-William-Americas-Greatest/dp/0525244042 Newsthink is produced and presented by Cindy Pom https://twitter.com/cindypom Grab your Newsthink merch here: https://newsthink.creator-spring.com Thank you to our Patrons, including Igli Laci Support us on Patreon: https://www.patreon.com/Newsthink Special thanks to the following for permission to use their material: Faces of the Forgotten on YouTube https://www.youtube.com/watch?v=EEDkjWYFEJ8&t=252s Sources: William J. Sidis’ IQ was estimated to be 250 - 300, according to Abraham Sperling, director of New York City's Aptitude Testing Institute Einstein color photo: DonkeyHotey, CC BY 2.0 https://creativecommons.org/licenses/by/2.0 via Wikimedia Commons Fourth dimensional cube: JasonHise at English Wikipedia, Public domain, via Wikimedia Commons Sidis Psychotherapeutic Institute: Maplewood Farms, Portsmouth, N.H. (Public Domain) Jim Evans, CC BY-SA 4.0 https://creativecommons.org/licenses/by-sa/4.0 via Wikimedia Commons John Phelan, CC BY 3.0 https://creativecommons.org/licenses/by/3.0 via Wikimedia Commons Myotus, CC BY-SA 4.0 https://creativecommons.org/licenses/by-sa/4.0 via Wikimedia Commons