Ancient atomists took a sober view of the ethical consequences of the existence of innumerable other worlds ; these consequences stem from the principles of physics and cosmology.
Lucretius 5, 526-533 observes that one of the possible explanations of natural phenomena must be true of this world and each of the explanations must be true of some world.
In this way Epicureans hoped to bridge the gap between offering multiple merely possible explanations and the provision of tranquillity-producing conviction.
At 2, 1090-1104 Lucretius ' rejection of the thought that god is needed to maintain the world has the repercussion that the gods should not concern us.
Nature can be liberated from the need of divine demiurges since now she is sufficient to produce worlds on her own.
