Relative Existence and Experience

The physical world is made of entities with their properties. A rock has a certain weight, shape and size. How is it possible that a human being (or another sentient animal) experiences the external world? Here I propose to revisit the physical world in terms of relative existence. The world is redefined as a collection of relative and actual objects, each causally effective and spatiotemporally spread. Physical reality is much richer than is usually assumed. Each object can instantiate multiple properties each relative to other objects, as it well known in simple cases such as relative velocity or weight. The paper suggests extending the relativity of existence to all the properties we find in our experience. By doing so there is no longer any need to split our experience from the world. Such a revision, completely compatible with physics, has a fundamental advantage: it endorses the mind-object identity thesis. In other words, our experience of the world is no longer separate from the world.