The guy in the fol­lo­wing video speaks pret­ty fast, so acti­va­te Eng­lish (!) sub­tit­les. But bewa­re the­re are mista­kes, so for exam­p­le “Kel­ly” beco­mes “jel­ly”. 😉

“Maths is no more important than dance!” (4:31) Yo, man, dead right!!!