basic physics
some people like to question basic physics. like whether you can build an anti-gravity device. or whether coating a thing in co2 will increase its temperature. or evolution. should you even engage them in debate? sure seems like a waste of time. some do it cause bucking the mainstream makes them feel important. or it sells tabloids. or gets people to reading and posting on your blog. some just do it cause they're too stupid to think for themselves and are only capable of regurgitating whatever drivel their idol vomits. but i suppose it's worse to leave ignorance unopposed. heh. how does your wife look in a burqa?