Find out what it takes for a quantum computer to beat a classical computer to achieve quantum supremacy. Check out this video's sponsor https://brilliant.org/dos Quantum supremacy’s that moment when a quantum computer beats the best supercomputers at solving some kind of problem, and it’s a very exciting time right now in quantum computing because, as of recording this video we’re on the brink of having quantum supremacy. In this video I quickly describe how quantum computing works, what quantum computers exist in the world today and what you need to do to prove quantum supremacy. When I posted this video quantum supremacy hadn’t been reached, but people are predicting that it will happen soon. Also the qubit numbers I posted for the different quantum computing efforts will go out of date quite quickly, so they won’t be valid if you are watching this in the future. Hello from April 2018! And full disclosure - I used to work at D-Wave but I don’t have any favourites, I’m excited by progress on all fronts and believe they all deserve the same critical analysis. #quantum #computers #DomainOfScience I have other posters available to buy here: https://www.redbubble.com/people/dominicwalliman I have also made versions available for educational use which you can find here: https://www.flickr.com/photos/95869671@N08/ Thanks so much to my supporters on Patreon. If you enjoy my videos and would like to help me make more this is the best way and I appreciate it very much. https://www.patreon.com/domainofscience Also, if you enjoyed this video, you will probably like my science books, available in all good books shops around the work and is printed in over 20 languages. Links are below or just search for Professor Astro Cat. They are fun children's books aimed at the age range 4+ and 7+. But they are also a hit with adults who want good explanations of science. The books have won awards and the app won a Webby. Frontiers of Space: http://nobrow.net/shop/professor-astro-cats-frontiers-of-space/ Atomic Adventure: http://nobrow.net/shop/professor-astro-cats-atomic-adventure/ Human Body Odyssey: http://nobrow.net/shop/professor-astro-cats-human-body-odyssey/ Solar System Book (age 4+): http://nobrow.net/shop/professor-astro-cats-solar-system/ Solar System App: http://www.minilabstudios.com/apps/professor-astro-cats-solar-system/ Find me on twitter, instagram, and my website: http://dominicwalliman.com/ https://twitter.com/DominicWalliman https://www.instagram.com/dominicwalliman https://www.facebook.com/domainofscience