The concept of superposition exists in both quantum mechanics and evolutionary geology. We start with the strange and counterintuitive world of quantum physics, where particles exist in multiple states until observed. Then, we journey back to 1666 where another kind of superpositionwas discovered—this time in rock layers - allowing us to read Earth's history through its geological layers.  Please consider becoming a show Patron to help keep new episodes coming!   Evolution Talk is also a book! You can find links to Amazon, Barnes & Noble and others on the front page of EvolutionTalk.com, or call your local bookstore and ask them to order a copy. You can also check out the new YouTube channel!   Music in this Episode Three Colors by Podington Bear, License (CC BY 3.0): Artist website: soundofpicture.com Submerging Blue-Black by Podington Bear, License (CC BY 3.0): Artist website: soundofpicture.com Floating by Podington Bear, License (CC BY 3.0): Artist website: soundofpicture.com Chimera by Podington Bear, License (CC BY 3.0): Artist website: soundofpicture.com