Yes there is a lot packed into this one. There is a sense (at least to me) of not just history repeating itself (that is there) but also of epochs of life itself revealing itself. The fist stanza alludes to it with the line:
A single celled vision
The time of the amoebas, where life began. Growing through the words towards civilisation, and then something more, something involving consciousness. This was more stream of consciousness, which is why I am still learning from it also.
Thanks for your sharing your thoughts on this.