circle

the 1-d model @ 180°

to begin our examination into the underlying geometries of time-travel, we look first to the centroid point, extended into a linear measure, that describes one extension of the centroid point onto a plane surface, the sum of all which can be described as the circle surrounding the centroid at the distance of the line. We mark these measurments thus: the centroid is the past, the radius the present, and the circle, the future.