the future will, in many ways be just like the past! we can remember it!

Ever read Childhood's End by Arthur C Clarke, Helen (or anyone)? Nice bit in there about why we have a particular image of the Devil - related to the circularity of time.

And that reminds me of another "what would people do with limitless power" story - Dancers At The End Of Time by good old Michael Moorcock. A recommended read.