1. A system for displaying textual data, the system comprising: a memory having computer readable instructions; and a processor for executing the computer readable instructions, the computer readable instructions comprising: receiving a request to display textual data; displaying textual data in a reticle region within a display area, wherein the reticle region is moveable with respect to the display area, and wherein displaying textual data includes sequentially presenting successive components of the textual data at a fixed position relative to the reticle region within the display area; monitoring a point of gaze of a user based on biometric information; based on detecting that the point of gaze is away from the reticle region, automatically stopping the displaying at a current time point at which a current component is displayed, and determining a previous component of the textual data that was displayed at a previous time point, the previous time point occurring a rewind time period prior to the current time point, wherein the rewind time period between the previous time point and the current time point is determined based at least in part on a reading speed of the user; and based on detecting that the point of gaze has returned to the reticle region, displaying the previous component associated with the previous time point and continuing to display successive components of the textual data subsequent to the previous component.
8. The system of claim 1 , wherein the reticle region of the display area is defined by a reticle on which successive textual data components are displayed.