But the development of human society does not go straight forward; and the epic process will therefore be a recurring process, the series a recurring series - though not in exact repetition.
I'm not good at future planning. I don't plan at all. I don't know what I'm doing tomorrow. I don't have a day planner and I don't have a diary. I completely live in the now, not in the past, not in the future.
We had grain but no mills, so I designed a special mill of wood so we could make flour.