"One could say that the I Ching is a mirror of one’s own concerns or expectations.

feed a random signal in then examine the outputs. Results will tell you something about the dynamics of the system that processes the signal.

"But it’s like one of the bronze mirrors from the Shang dynasty, now covered in a dark blue-green patina so that it doesn’t reflect at all."

Perhaps the input signal from the hexagrams relates to a culture so remote from the modern world that it tells us little about ourselves now.