Scientists may not be able to predict what the world may look like 100 million years from now, but they may be able to look at how diseases like the flu will evolve in a few months, which has the potential to save lives: “Lässig hopes to be able to make predictions about future flu seasons that the World Health Organization could consult as they decide which strains should be included in flu vaccines. ‘It’s just a question of a few years,’ he said.”