A Fight for the Soul of Science String theory, the multiverse and other ideas of modern physics are potentially untestable. At a historic meeting in Munich, scientists and philosophers asked: should we trust them anyway? Laetitia Vancon for Quanta MagazinePhysicists George Ellis (center) and Joe Silk (right) at Ludwig Maximilian University in Munich on Dec. 7. By: Natalie WolchoverDecember 16, 2015 Comments (17) Share this: facebooktwitterredditmail PDF Print Physicists typically think they “need philosophers and historians of science like birds need ornithologists,†the Nobel laureate David Gross told a roomful of philosophers, historians and physicists last week in Munich, Germany,...