I think that in natural #science we just should use #seconds as the standard unit of #time for everything, and add a #metric prefix to get rid of exponents. The dinosaurs got extinct roughly 2 #petaseconds ago. The cambrian explosion was 16 Ps ago. The half-life of uranium is 22 Ps. The #Universe is 435 Ps old. https://en.wikipedia.org/wiki/Orders_of_magnitude_(time)