An Internal Spiral Ramp for the Great Pyramid: A Grounded Construction Timeline That Counters Alien Theories

To the point

Computer scientist Vicente Luis Rosell Roig and colleagues propose that the Great Pyramid was built with an internal spiral ramp that moved blocks upward, making the 2.3 million-block construction doable in about 20–30 years and undercutting alien conspiracy theories.

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Researchers Believe They Finally Figured Out How the Great Pyramids Were Built— And No, Its Not Aliens
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Researchers Believe They Finally Figured Out How the Great Pyramids Were Built— And No, Its Not Aliens

Recent research proposes that the pyramids were built using a hidden internal ramp system.