At 5:43 in the video I see a engine with a great number of crankshafts. What propels the engine? Elephants at 5.38 The modern human limited mind has just went shy of seeing the whole picture.
Mankind in general,has amnesia.. The incredible stoneworks that remain is baffling and inexplicable... Something our best minds can't explain..🤔😕... 😑 Meh....