Why does mathematics explain the universe so well? From the big bang to the distant future via parallel worlds, Max Tegmark proposes a radical idea: that our reality is not only described by mathematics: it is mathematics. 'Daring, Radical. Innovative. A game changer.' Michio Kaku, author of Physics of the Future 'An amazing ride through the rich landscape of contemporary cosmology.' Clive Cookson, Financial Times 'An intellectual adventure . . . enlivened by the author's personal touch.' John Gribbin, Times Higher Education 'Lively . . . wonderfully accessible.' Brian Greene, author of The Elegant Universe 'Exhilarating . . . the nearest we have to a successor to Richard Feynman . . . His insights and conclusions are staggering.' Robert Matthews, Focus

Why does mathematics explain the universe so well? From the big bang to the distant future via parallel worlds, Max Tegmark proposes a radical idea: that our reality is not only described by mathematics: it is mathematics. 'Daring, Radical. Innovative. A game changer.' Michio Kaku, author of Physics of the Future 'An amazing ride through the rich landscape of contemporary cosmology.' Clive Cookson, Financial Times 'An intellectual adventure . . . enlivened by the author's personal touch.' John Gribbin, Times Higher Education 'Lively . . . wonderfully accessible.' Brian Greene, author of The Elegant Universe 'Exhilarating . . . the nearest we have to a successor to Richard Feynman . . . His insights and conclusions are staggering.' Robert Matthews, Focus