Tearing out what's left of hair for ages, posted question, went for coffee and answer just sort of popped into my head as usual. I find posting technical questions here just magic like that. Can't even remember what the question was now.
PS Looked up Zeitghost in dictionary. 1 The spirit of the times 2 The trend of thought and feeling in a period. Word sounds really good but not sure meaning is very flattering to you. What is the spirit of our times?, summit for nuttin, Big Brother, Puff Daddy, political correctness, spin doctors, JK Rowling, barmy new age beliefs, Nissan Micra, massacring gorillas and instant credit.
The spirit of 25000 BC now would have been worth something, bashing sabre tooth tigers with a mammoth's thighbone was about as good as humanity ever got.