I'm over at Archaeology News Network reading TANN's posting: 42,000 Year Old Neanderthal Art Found
The image shown's a design involving three 'seals' clearly arranged atop each other so as to achieve the same visual effect created by entwining serpents round Hermes caduceus effectively turning the stalactite itself into a caduceus (or indeed a totem pole).
Some people think the caduceus and totem pole're stylised representations of the same Axis Mundi represented by the World Tree.
Others have it they're depictions of the chakra system.
I see no reason why both can't apply but the moment I saw this ancient artist's work it instantly struck me the gal or guy who'd drawn this thing was alluding both to the helical structure of DNA and the experience whereby they acquired their knowledge of it.
During the Nineties I periodically underwent the distinctly peculiar experience of SEEMINGLY turning into a woman. I didn't suddenly magically acquire a vagina or even breasts but SOMEHOW I knew and felt I'd become internally female.
Each bout'd only last about half an hour but it gave me an insight into what drives people to have gender reassignment surgery because if that effect'd persisted in me I'm pretty certain I'd've done exactly the same thing because quite frankly the sheer ecstatic physical and mental blissfulness of the experience made turning back into a man feel like a paltry inadequate fractured affair.
The crucial detail here though's whenever I was experiencing whatever it was I'd undergo I'd become aware of myself as this sort of region of vast quivering plangent space filled with rank upon rank of this seemingly infinite number of scrolling spiralling chains of vibrating energy endlessly plunging into the void (a bit like those chains of green coloured numbers in The Matrix) which whenever I started changing back into a man became these sort of painfully jagged irritatingly angular lightning bolts endlessly chaotically and crotchily ricocheting off each other.
I strongly suggest in the past there was much more awareness of such experiences and they may even've been ardently sought or at least deliberately induced because ancient mythology's stuffed with sex-changing characters like Tiresias and even such manly heroic types as Heracles Odysseus and Achilles have to spend time as women though the way Odin and Loki rip the piss out o' each other for such shennanigans implies not everyone was keen on the idea.
The thing is though such experiences may not be purely subjective. I don't necessarily mean Tiresias really DID change sexes - though for all I know he DID!
I mean they may also be conduits of authentic scientific insight.
If that ancient Neanderthal artist really DID undergo a similar experience to mine then they may've had an insight into DNA 42,000 years before we did.
And before you poo-poo that idea remember according to Genesis Eve came into existence as a result of Adam losing one of his ribs: maybe in the technical language of the day this was a way of referring to the limb missing from the male Y chromosome.