Nirai Kanai: The Lost High-Tech Civilization of the Sanasai Circle

The legend of Nirai Kanai, a lost ancient high-tech civilization that purportedly existed on a vast, lush plain in the mysterious waters east of Taiwan. Physical evidence for this theory includes the Yonaguni underwater pyramid, a massive stone structure discovered in 1986 featuring precise geometric cuts, smooth surfaces, and giant stairs that seem impossible for Stone Age humans to have processed. Scientific dating suggests these ruins were built between 70,000 and 110,000 years ago before being submerged, potentially linking them to global legends of a "War of the Gods" or a catastrophic flood that destroyed prehistoric advanced societies