I think you're assuming it potholes in the same way as asphalt. Even if it did, it would be repaired most likely the same way potholes are repaired today, by in

I think you're assuming it potholes in the same way as asphalt. Even if it did, it would be repaired most likely the same way potholes are repaired today, by infection new plastic into the hole and forming the previous layer to it, just like we do with asphalt today.