@fury123 Its somewhat similar. The butterfly effect(BE) is a broader theory, causal loop is a very specific case of that. BE is experimentally proven by Lorentz, whereas CL is borderline sci-fi, despite several theories supporting its validity. BE suggests that the fabric of space and time is extremely delicate, and small changes in initial events can massively impact event in the future. The term "Butterfly effect" is named after an analogy demonstrating this - a butterfly flapping its wing in Brazil can potentially trigger an earthquake in Chicago. I'll write in an article next week.