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The ominous foreshadowing damage was long done on this day in 1969, when freaky folk one-hit wondrous duo Zager and Evans ended a six-week run on the Billboard charts with their mirror-ball jam, “In the Year 2525 (Exordium and Terminus).”

Not that a chronological narrative marrying empty Christian Judgment Day threats and visions of test-tube babies was anything radical for the times — this was two years after the Summer of Love and a year after the dawning of the “Age of Aquarius.” But considering the duo’s timeless brethren, from Creedence to Jimi and Janis and everyone else idolized as the pillars of that generation, Zager and Evans don’t get enough cred for their airwave domination and moment in 60s idealism.

And you don’t need any doobage to see some of the truths that they actually did predict. Test tube-tube babies and robots, man. Heavy:

In the year 5555
Your arms hangin’ limp at your sides
Your legs got nothin’ to do
Some machine’s doin’ that for you

In the year 6565
You won’t need no husband, won’t need no wife
You’ll pick your son, pick your daughter too
From the bottom of a long glass tube