An ancient machine found in a shipwreck stuns the modern world. What was the mysterious device used for? How can it be so advanced? In the annals of archaeological discovery, few artifacts have so profoundly challenged our understanding of ancient technological capabilities as the Antikythera mechanism. Unearthed from a Roman-era shipwreck off the coast of the Greek island of Antikythera in the early 20th century, this intricate device, a seemingly unassuming collection of corroded bronze gears and dials, has stunned the modern scientific world. It is, in essence, an analog computer of astonishing complexity, a machine that, by all accounts, simply shouldn't have existed in the known technological landscape of its time—roughly the 2nd century BCE. For decades, the enigmatic fragments baffled researchers. X-ray imaging and painstaking analysis have since revealed a breathtakingly sophisticated mechanism comprised of at least 30 meshing bronze gears, housed within a wooden fram...