I have a idea for a series of stories exploring the Silurian Hypothesis as recurrent history, where we discover previous industrial civilizations on earth, and are in turn discovered by the industrial civilization after ours, possibly after some minor colonization of the solar system but where climate change catastrophe cuts the sustainability of human settlements everywhere and tracing a future history where there is a decline to small hunter gatherer groups that then returns to an Information Age, and perhaps a discovery of an artifact from our previous era, something distinctive like a Space Shuttle, fusion reactor, NORAD bunker, or some such.