Alexander Marshak became known for his microscopic reading of hash marks on bone and stone as lunar record-keeping by our Aurignacian ancestors. He also argued that representations of vulvas in Upper Paleolithic art were "isolated, abstract, and symbolic to the point (where they) could be recognized in a simple circle with a single mark" triggering "the stories, characters, and processes with which the symbol had become associated."

What could these stories have been, in view of "the idea of immutable gender identity stemming from extreme difference

emerged only in the late eighteenth century, replacing an ideology
of sexual difference. Therefore, archaeologists must not assume that

people in the past in any region of the world saw sex as binary and fixed as degrees of development of shared potential."?

Gender appears in acute angles of rock and flowers in plants that are naturally erotic. One's whole environment brightens when a desirable other is near.

The cave as womb, the entrance to the cave,
the shaman impregnates with rays of the sun.

However, it is not difference, but we live in a world in which everything is knotted together, an impregnable tangle of causes and effects. Even when a system is dissected into its basic parts, those parts are still influenced by a whirligig of forces we can’t understand or haven’t considered or don't think matter. Hamlet was right: There really are more things in heaven and Earth than are dreamt of in our unconscious symbols that prompt the blood that quickens the heart.