Matt Parker talks a lot of maths. He's a NYT best-selling author and sold-out stand-up performer. But now it's time he does the maths. Really gets in there and gives the maths a good doing. It's time he programmes his own Christmas tree lights and then 11,184,024 people watch his downfall (and counting). It's time he shares his hand-crafted maths code online only for viewers to improve it by 40,832,277,770%. It's time he shaped-up and crawled out from under the square named after him. Come watch Matt Parker do the maths. (Every audience member will get some free maths.)