What would it be like to be able to time travel to the past, meet your previous self, and
override your previous actions in order to achieve a better outcome? While we cannot (yet?)
achieve physical time travel, digital technologies now allow us to experience virtual time
travel. We have developed a method for implementing time travel in highly immersive virtual
reality (VR) and here we describe the underlying technology in the context of a scenario that
involves a shooting event in a virtual gallery. Our method includes two layers of abstraction …