Jeffro
It is true that 'the land of the Chaldeans' is still populated to this day and the 'prophecy' of Babylon's desolation—to the extent that it would remain uninhabited—was a failure. But Babylon's 70 years quite definitely ended when it was conquered by Persia in 539BCE. But thanks once again to 'scholar' (and Fisherman) for showing that JWs don't actually care what the Bible says when it contradicts their end-times dogma.-
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So if what you say about the prophecy of the 'land of Chaldeans' and of Babylon's destruction were not fulfilled so the prophecy about God's 'call to account the king of Babylon' also remained unfulfilled. Thus, according to your interpretation, the prophecy of Jer. 25:12 was a failure.
Babylon's 70 years could not have ended in 539 BCE for the conditions of its fulfilment were that Jeremiah's prophecy describing the 70 years was that there be a desolation of the land of Judah, a period of servitude to Babylon along with being an exile in Babylon. Clearly, these three specified conditions of the fulfilment of the 70 years were not met by the Fall of Babylon in 539 BCE but only in 537 with the Return of the Jews
scholar JW