We should be back to earth soon. But we have problem. Humans are not reading our books. Perhaps they are boring? Or maybe next time we should turn humans into fish and fish into humans. Then fish may want to read our books? If you are reading this and in future find you have been turned into a fish this is why you are now fish. But if fish (new humans) don’t read our books either than we will switch you back. If new humans do read our books you will remain fish.