There may not be room in this thread for both of our huge egos.
Here is your original post, and I will highlight the part I have a problem with:
You do not have to burn any fossil fuels using nuclear means to produce hydrogen. Since you wanted to bring credentials into play, I will state that they did this at the nuclear power plants where I have worked.
Also, I placed more faith in your powers of deductive reasoning than I should have. I was not stating that "...H2 be used in a fuel cell to produce electricity, which in turn is used to extract more H2, in some endless cycle where the efficiency losses of each system aren’t a concern...", I was merely pointing out that once fuel cells are in widespread use, the demand for cheaper hydrogen will drive research into more efficeint ways of obtaining it. Hence the statement that "the means to extract hydrogen (most likely NOT through electrolysis) will only become more cost effective once this happens".
It's a prime example of Price elasticity of supply. I have provided a link since I know your education is in engineering and not economics (obviously).
Cheers.