Why Does the Universe Exist?

Even if there is only one possible unified theory, it is just a set of rules and equations. What is it that breathes fire into the equations and makes a universe for them to describe? The usual approach of science of constructing a mathematical model cannot answer the questions of why there should be a universe for the model to describe. Why does the universe go to all the bother of existing?

Notes:

The most profound question for Stephen Hawking.

Folksonomies: origins existential

Taxonomies:
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/science/physics (0.604379)
/science/physics/electromagnetism (0.437023)

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Mathematics (0.578129): dbpedia | freebase | opencyc
Stephen Hawking (0.501580): dbpedia | freebase | opencyc | yago
Gravitational singularity (0.471662): dbpedia | freebase | yago
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University of Cambridge (0.413314): geo | website | dbpedia | freebase | opencyc | yago

 A Brief History Of Time
Books, Brochures, and Chapters>Book:  Hawking , Stephen (2009-11-10), A Brief History Of Time, Transworld Digital, Retrieved on 2012-06-04
  • Source Material [books.google.com]
  • Folksonomies: science