It is written by the naturalist co-author of the new Cambridge University Press book “A Fortunate Universe: Life in a Finely-Tuned Cosmos”.
As a cosmologist, I can use [the] immutable laws of physics to evolve synthetic universes on supercomputers, watching matter flow in the clutches of gravity, pooling into galaxies, and forming stars. Simulations such as these allow me to test ideas about the universe – particularly to try to understand the mystery of dark energy (more on this later).
[…]So now, I invite you to join me in imagining a universe, a universe slightly different to our own. Let’s just play with one number and see what happens: the mass of the down-quark. Currently, it is set to be slightly heavier than the up-quark.
[…]If we start to ratchet up the…
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