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
"The dazzling and consuming act of pride that transformed the angel of light into a prince of darkness condemned him to an insatiable, desperate to acquire. The loss of the wellspring of life gives rise to an essentially inextinguishable thirst. The entire world can not fill the emptiness. Having fallen from the eternal, Satan's desires are endless and insatiable. Having fallen from pure Being, he seeks to possess. All he takes into himself he destroys."
Denis de Rougemont, Switzerland, 1944