The Science of Discworld

When a wizardly experiment goes adrift, the wizards of Unseen University
find themselves with a pocket universe on their hands: Roundworld,
where neither magic nor common sense seems to stand a chance against
logic.
The Universe, of course, is our own. And Roundworld is
Earth. As the wizards watch their accidental creation grow, we follow
the story of our universe from the primal singularity of the Big Bang to
the internet and beyond.
Through this original Terry Pratchett
story (with intervening chapters from Cohen and Stewart) we discover how
puny and insignificant individual lives are against a cosmic backdrop
of creation and disaster. Yet, paradoxically, we see how the richness of
a universe based on rules, has led to a complex world and at least one
species that tried to get a grip of what was going on.