Facts and reality such as
http://boards.straightdope.com/sdmb/showpost.php?p=13593152&postcount=613
You know, I don’t think I’m ever going to get tired of re-quoting that. Ever. It has to be one of the most beautifully stupid things I’ve seen written. I think it should be given as a footnote at the end of every post you make claiming some understanding of the topic, just so any poor newcomer to this trainwreck is instantly aware just how well you understand the topic.