[burzum]

Now you're getting into some better territory. It is thought that the universe's hydrogen and some helium condensed out about 300K years after the BB when the universe cooled enough. The heavier elements up to iron were created by fusion in stars. The heavier elements were created and spewed into space by super novas. These naturally occuring elements then combine to form the molecules of non-living (and living) matter. I would classify those theories as very reliable.

No. Hydrogen ions , deuterium ions, helium ions, and traces of lithium ions were created in the first four minutes after the Big Bang. It took about 500,000 years for the universe to expand and cool to the point where the high photon flux would not reionize these ions. Thus at about half a million years, these atoms captured electrons and created the cosmic microwave background. The rest of your post is accurate. It is probable that we are third generation or further supernova remnants. The high levels of carbon, oxygen, silicon, and iron are easily accounted for in nuclear physics depending upon the sizes of the stars. Higher elements are only accounted for in supernovas because it takes endothermic nuclear reactions to make them. This is also why they are so rare, especially for high atomic numbers.

[edsheppa]

I grant your point, but the I think the poster was interested in the direct origin of today's ground state matter rather than bare the protons or heavier ionized nuclei in that primordial plasma or the stranger states of matter that preceeded it.

"Condense" was probably a poor choice or word on my part but I couldn't come up with better and it at least communicates the change in state.