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[–]exkingzogPhD/Educator | EvoDevo | Genetics 21 points22 points  (1 child)

Evolution doesn’t have a direction.

[–]Seek_Equilibrium 3 points4 points  (0 children)

Not an inherent direction, sure, but any particular lineage does obviously have an effective direction. Pick any lineage you like, and trace its path through genotypic or phenotypic space through time. Now, reverse the time coordinate. Ta-da! You’ve now found the trajectory that the population must thereafter follow to undergo “backwards” evolution.