The Long Earth

"The Long Earth" is a concept—also explored in a series of novels—referring to the idea that there are countless alternative Earths existing parallel to our own, accessible through a device called a "Stepper." These Earths are similar but differ in small ways, and people can travel between them instantly through this technology. The discovery of these worlds raises questions about their impact on society, resources, and identity. It explores themes of exploration, the infinite possibilities of existence, and the consequences of unlimited access to new worlds within a multiverse framework.