Leaving aside that was I particularly enjoyed was the one commenter's turn of phrase, I think you'd find on a more thorough reading of the blog in general and the average comment that there is a total understanding that science is not a fact, but a process. It is a process of discovery, rediscovery, understanding, changes in understanding, etc.

However, even though our understanding of the world may grow and change, the world itself remains, and our debate won't change that. Take gravity, for instance. Feel free to debate it at your leisure - I'm fairly certain you'll find it a directly observable fact, though you might not be able to think about it after a big enough personal impact.