Blog comment by Steven Wells:
"Fundamentalists": believe 2+2 = 5 because It Is Written. Somewhere. They have a lot of trouble on their tax returns.
"Moderate" believers: live their lives on the basis that 2+2 = 4. but go regularly to church to be told that 2+2 once made 5, or will one day make 5, or in a very real and spiritual sense should make 5.
"Moderate" atheists: know that 2+2 = 4 but think it impolite to say so too loudly as people who think 2+2=5 might be offended.
"Militant" atheists: "Oh for pity's sake. HERE. Two pebbles. Two more pebbles. FOUR pebbles. What is WRONG with you people?"
Find the blog post he commented on here ...
In another comment we are assured that, in fact, 2+2 does = 5 but only for extremely large values of 2 or exceedingly small values of 5.