Sarah Palin’s early retirement from Alaska’s governor’s mansion has been called erratic, unhinged, and irrational, which isn’t surprising: Her ten-month career as a national figure has been marked by erratic, extreme, and unhinged behavior, most of it emanating from the other side.

How rational is it for a once-noted blogger to obsess for months over Palin’s gynecological history, insisting that her younger son, born in April, 2008, was really born to her 18-year-old daughter, although the daughter was already pregnant with her own child, born eight months later, in December of the same year?