One picture is worth 1000 words.
This puts some teeth in the concept of 'historic lows.'
Ten Year Note Yield with SP 500
Charts courtesy of Ralph Dillon at Global Financial Data
"Our government is the potent, the omnipresent teacher. For good or for ill, it teaches the whole people by its example. Crime is contagious. If the government becomes a lawbreaker, it breeds contempt for law; it invites every man to become a law unto himself; it invites anarchy."
Louis Brandeis, Olmstead v. United States, 1928