Every 495-year Neptune-Pluto cycle comes with both themes and paradoxes. Themes come via the function of time; a prevalent theme across the Middle Age 411-905 Neptune-Pluto cycle was tribilization of Eurasia. Themes can also be paradoxes, but they different. Where a theme is an element of history, a paradox centers around how society reacts to them. Tribalization occurred with the collpase of the Western Roman Empire. The paradox was de-Romanization. How do cultures fill the vacuum left by the collapse of such a large enterprise?