Since only a narrow range of the allowed values for, say, the fine structure constant will permit observers to exist in the Universe, we must find ourselves in the narrow range of possibilities which permit...

If the deep logic of what determines the value of the fine-structure constant also played a significant role in our understanding of all the physical processes in which the fine-structure constant enters, then we would...

There are considerable mysteries surrounding the strange values that Nature’s actual particles have for their mass and charge. For example, there is the unexplained ‘fine structure constant’ … governing the strength of electromagnetic interactions, ….