In the decades since its introduction, the neutral theory of evolution has become central to the study of evolution at the molecular level, in part because it provides a way to make strong predictions ...

String theory began over 50 years ago as a way to understand the strong nuclear force. Since then, it’s grown to become a theory of everything, capable of explaining the nature of every particle, ...

The mother of all string theories passes a litmus test that, so far, no other candidate theory of quantum gravity has been able to match. It’s not easy being a “theory of everything.” A TOE has the ...