Alpher, Bethe, Gamow (1948) assumed that, during Primordial Nucleo-Synthesis, matter density varied as t^-2. However, that is the Matter-Dominated Era solution. Yet, Primordial Nucleo-Synthesis occurred tens of thousands of years earlier, before the MDE, in the Radiation Dominated Era, when [math]a \propto t^{1/2}[/math], so that matter density varied as t^-3/2. That could affect the physics.

 

Also, at the super-early epoch, the universe was expanding at enormous speeds. Would not the 'redshift recessional velocities' have been huge, so that the 'effective gas temperature', 'swimming against the current', would have been allot lower, than the actual local T ? Couldn't that, too, affect the physics? And, ABG assumed a flat space-time, yet people presume that the cosmos is closed. There seem to be many uncertainties, in the physics, unknown to modern human science, at present.

Edited May 22, 201114 yr by Widdekind

I will go out on a limb and assume that physicists that analyze the big bang aftermath take into account objections you have raised (assuming they are valid). A lot has happened since 1948.

Can you offer any online link, or introductory level book about it? (Thanks in advance)