Yes, I've read this several years ago, but you didn't read my links. Because my link use actual arithmetic, while McCarthy only says that those who don't use arithmetic are condemned to fail, then happily proceed with vague numbers and absolutely ZERO actual data.
They use the assumption that population and energy use per capita will continue to grow exponentially, when it's clear that it doesn't. That may be "arithmetic" of a sort, but GIGO, you know.
Essentially every developed country is below replacement level (the United States is an exception, but only due to high immigration).
Find out why that is and then you can discuss the issue without, as McCarthy said, talking nonsense.
I did use actual arithmetic in the waste heat calculation, which I notice that you did not dispute.
Did you actually read this?
We have enough fissile material to last billions of years. "Billions". With a B.
http://www-formal.stanford.edu/jmc/progress/nuclear-faq.html