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Alyssa Strupp
The Number Illusion You Won't BelieveGet 70% off NordVPN plus and additional month free: https://nordvpn.com/vsauce2 Use coupon code: vsauce2 Thanks to NordVPN for sponsoring this episode and supporting Vsauce2. Watch my newest video, "Can Being Stupid Make You Smart?": https://youtu.be/-adHRNYHbm0 Sometimes math is so beautifully tricky, and presented in such a subtle way, that it’s virtually indistinguishable from magic. Welcome to The Kruskal Count. David Copperfield is probably the most famous living magician/illusionist, and he’s made use of the Kruskal Count to convince millions of people worldwide that he harbors amazing predictive powers. Does he? Well… yes and no. At the core of his mathematical mind reading is physicist Martin Kruskal’s discovery that certain counting games are really a sequence of chains that can intersect and eventually become one single chain. Using that knowledge of well-concealed probability, it’s easy to perform a mind-blowing demonstration that appears to be pure magic. But it doesn’t *always* work, because that’s the way probability goes. Sometimes it’s perfect, sometimes it isn’t. By examining the Kruskal Count as a magic trick and also through its original card-based format, we’ll see that magic can be math… and math can be magic. Play “The Kruskal Count Card Trick” simulator by Alex Frieden and Ravi Montenegro: http://faculty.uml.edu/rmontenegro/research/kruskal_count/kruskal.html *** SOURCES *** David Copperfield Vacation Destination Trick: https://youtu.be/RZmS_BTwPEU “The Kruskal Count,” Lavarius, Rains, Vanderbei, October 2001. https://arxiv.org/pdf/math/0110143.pdf Mathematical Card Tricks: “It’s probably magic,” American Mathematical Society: http://www.ams.org/publicoutreach/feature-column/fcarc-mulcahy6 “How Long Does It Take To Catch A Wild Kangaroo?” by Ravi Montenegro and Prasad Tetali: https://arxiv.org/pdf/0812.0789.pdf “Monte Carlo Methods for Index Computation,” by J.M. Pollard: https://www.jstor.org/stable/2006496?origin=crossref&seq=1 *** LINKS *** Vsauce2: Twitter: https://twitter.com/VsauceTwo Facebook: https://www.facebook.com/VsauceTwo Talk Vsauce2 in the TCU Discord: https://discord.gg/tyh7AVm Hosted and Produced by Kevin Lieber Instagram: http://instagram.com/kevlieber Twitter: https://twitter.com/kevinlieber Podcast: https://www.youtube.com/thecreateunknown Research And Writing by Matthew Tabor https://twitter.com/TaborTCU Editing by John Swan https://www.youtube.com/channel/UCJuSltoYKrAUKnbYO5EMZ2A Huge Thanks To Paula Lieber https://www.etsy.com/shop/Craftality Select Music By Jake Chudnow: http://www.youtube.com/user/JakeChudnow Get Vsauce's favorite science and math toys delivered to your door! https://www.curiositybox.com/ #learning #education #vsauce
Why You Don't Need to Be ExceptionalMany of us walk the earth with a feeling that, in order to acceptable, we need to be something very special indeed. It could sound like ambition, but it's closer to neurosis - and a source of constant and unnecessary pain. Here are some tips to unwind the affliction. Sign up to our new newsletter and get 10% off your first online order of a book, product or class: https://bit.ly/2LayJ9F For gifts and more from The School of Life, visit our online shop: https://bit.ly/2MaUg6q Our website has classes, articles and products to help you lead a more fulfilled life: https://bit.ly/2LCXXSQ FURTHER READING You can read more on this and other subjects on our blog, here: https://bit.ly/2ZaayQv “It’s a rather simple question that quickly gets to the core of someone’s sense of well-being and legitimacy: did your childhood leave you feeling that you were – on balance – OK as you were? Or did you somewhere along the way derive an impression that you needed to be extraordinary in order to deserve a place on the earth? And, to raise an associated question: are you therefore now relaxed about your status in life? Or have you become either a manic overachiever or filled with shame at your so-called mediocrity?” MORE SCHOOL OF LIFE Visit us in person at our London HQ: https://bit.ly/2JOOWUB Watch more films on SELF in our playlist: http://bit.ly/TSOLself You can submit translations and transcripts on all of our videos here: https://www.youtube.com/timedtext_cs_panel?c=UC7IcJI8PUf5Z3zKxnZvTBog&tab=2 Find out how more here: https://support.google.com/youtube/answer/6054623?hl=en-GB SOCIAL MEDIA Feel free to follow us at the links below: Facebook: https://www.facebook.com/theschooloflifelondon/ Twitter: https://twitter.com/TheSchoolOfLife Instagram: https://www.instagram.com/theschooloflifelondon/ CREDITS Produced in collaboration with: Noelle Smith Design http://www.noellesmithdesign.com/ Title animation produced in collaboration with Vale Productions https://www.valeproductions.co.uk/