So Puella Magi Madoka Magica raised a giant middle finger to Thermodynamics with its own idea of entropy.

Kyuubey then raised another middle finger to his own idea of entropy by saying Homura’s wish surpasses entropy.

Homura can travel back in time as much as she wants.

Badass Walk of Epicness

If Kyuubey has the power to make Homura travel back in time, why doesn’t his civilization take all of themselves through the wormhole back in time to when the universe still has a lot of entropy? And rinse and repeat forever?