Referring to scientific theory as science fiction is a bit strong. The extinction of the dinosaurs isn’t Star Wars. Can we ever know exactly what caused that ex

Referring to scientific theory as science fiction is a bit strong. The extinction of the dinosaurs isn’t Star Wars. Can we ever know exactly what caused that extinction event? No. Did a massive meteor hit the earth that likely could have done it? Yes. Could some other coincident event also contributed? Sure. There is, however, pretty strong modeling-based evidence that the meteor strike alone could have caused the mass extinction.