This is the same as the example Asimov gave thou, plate tectonics being that the surface of the earth moves at imperceptible rate. That only over great time doe

This is the same as the example Asimov gave thou, plate tectonics being that the surface of the earth moves at imperceptible rate. That only over great time does this have any impact on the positioning of land masses. Instead of it being moving at a rate of zero (or static), it is moving at some tiny amount above zero.