Thanks to Steve Mould for filming with me. Check out his "How viruses self assemble" video. https://www.youtube.com/watch?v=3X6qEE2fHvE We have since made the t-shirt I'm wearing available for purchase: https://fotsn.teemill.com/collection/recursive-t-shirt/ We have some free teaching resources for anyone who wants to make a large collaborative fractal! As well as complicated 3D ones we've made a new Think Maths "low-prep giant Sierpinski triangle" guide. http://think-maths.co.uk/standupmaths-videos?yt-PPT-fractals#PPT-fractals The second channel video takes a closer look at the pptx file and the details of what version of PowerPoint you need to make this work. https://www.youtube.com/watch?v=5Mltw6cTb-s Tom Wildenhain has since made far more successful PowerPoint fractals than Steve and I were anywhere near. https://www.youtube.com/watch?v=O8l_awjgoMI If you want to see the live An Evening of Unnecessary Detail show: it's once a month in London. https://festivalofthespokennerd.com/show/an-evening-of-unnecessary-detail/ Some technical details about the Cantor Set. http://mathworld.wolfram.com/CantorSet.html CORRECTIONS - Nothing yet. Let me know if you spot anything! Thanks to my Patreon supports who do support these videos and make them possible. Here is a random subset: Simon Hutchings Philippe von Bergen Richard Fourie Alan Flett James Tanner Support my channel and I can make more maths videos: https://www.patreon.com/standupmaths Filming and editing by Trunkman Productions: http://trunkman.co.uk/ Sound production by Peter Doggart Music by Howard Carter Design by Simon Wright MATT PARKER: Stand-up Mathematician Website: http://standupmaths.com/ Maths book: http://wwwh.umble-pi.com/ Nerdy maths toys: http://mathsgear.co.uk/