The ultimate hidden truth of the world is that it is something that we make, and could just as easily make differently.
And have made differently in the past.
While we're all living in the present it's extra-important to acknowledge the successes (and sometimes catastrophic failures) of different civilizations of the past. The way we're living now is not the only way we've ever lived as a species, but we seem amazingly incapable of learning from past successes and failures sometimes.
All too real.