Anyone who has had the audacity to question mainstream science soon runs afoul, particularly in the blogosphere, of hard-line skeptics. Whether they are simply insistent or outright aggressive, the skeptical viewpoint has long been founded on a simple principle. Reality is what lies before us, in the three-dimensional world "out there" that's verified by the five senses. If you can see it, feel it, touch, taste, and smell it, the thing in question is real (making provisions for scientific instruments like telescopes and microscopes that extend the naked eye).