00:00What if humans invented a secret code 40,000 years before writing existed?
00:08Ice Age humans carved symbols into bones.
00:12But were these marks more than decorations?
00:15Then scientists analyzed thousands of these symbols and discovered something astonishing.
00:21Their patterns followed a surprising structure.
00:24Their information patterns resembled those of early writing systems that emerged thousands of years later.
00:30Could humans have been recording information long before writing began?
00:35Perhaps these were humanity's attempts to store information.
00:39But the greatest mystery remains, nobody knows exactly what these symbols meant.
