I think God just died of old age. And, when I realized that he wasn't any more, it didn't shock me. It seemed natural and right!
It's a question of spreading the available energy, aerobic and anaerobic, evenly over four minutes. If you run one part too fast, you pay a price. If you run another part more slowly your overall time is slower.
Design is not making beauty, beauty emerges from selection, affinities, integration, love.