A news entry in Nature of 25 Sept 23 is reporting on the grim period of Earth, 250 millions year away! By that time, continents will have drifted back, reunited into a new Pangaea supercontinent, Pangaea Ultima, which is likely to form around the equator, producing a deadly place where most life will go extinct. As happened 200 years ago. While grateful for the item of information that continental drif is thus cyclic, I find rather ironical that one worries about the extinction of life so far in the future, when it is likely to happen within a few decades!