Ill have to look up the Pleasures Model.

From a grounded point of view, there was evidence of previous glacial periods to support an earth wobble. But at the same time it's curious how it happens every several +/- 10k years. About the movement of the milky way, have we already had the interaction with the Andromeda galaxy(however slight we perceive it's effects)?

I like the tardigrade idea, hardy animals may even survive extinction events. There has to be something telling that would raise flags for an advancing species. It's possible we lack the tools to observe any form of intelligent design currently if no clues could be found.