Why is there a world, a cosmos, something, anything instead of absolutely nothing at all? If nothing existed, there would be, well, 'nothing' to explain. To have anything existing demands some kind of explanation. Of all the big questions, this is the biggest. Why anything? Why not nothing? What can we learn from the absence of nothing?

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David Z Albert, PhD, is Frederick E. Woodbridge Professor of Philosophy and Director of the MA Program in The Philosophical Foundations of Physics at Columbia University in New York. He received his BS in physics from Columbia College (1976) and his doctorate in theoretical physics from The Rockefeller University (1981) under Professor Nicola Khuri. Afterwards he worked with Professor Yakir Aharonov of Tel Aviv University.

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