Cosmology and the Origin of Life


Remember the basic problem:

After t = 15 minutes:

So How do we make GALAXIES ????

The First Problem:

To build a galaxy we need to grow a density fluctuation ! --> How is this going to happen?

The tight coupling between the radiation and matter means that the matter should be distributed like the radiation and we know, from observations of the MWB, that the distribution of radiation is very smooth.

So How come there are galaxies?

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