Quote:
Originally Posted by George
I assume the istotropy and lack of metals are the reason for the near perfect Planck result.
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I'm not sure the presence of metals would have changed things that much-- it would have kept free electrons around longer, so would have delayed the "decoupling" somewhat, but you put your finger on it-- the
isotropy was highly conducive to generating thermodynamic equilibrium, and would have sufficed even in the presence of metals.