This distortion of space-time has an interesting effect on light. Light follows the shortest path between two points – the definition of a ‘straight’ line. But I am now talking about lines in space-time, where distance is measured using Minkowski’s formula that includes the coordinates of space and time. Weirdly, using Minkowski’s formula, it turns out that the distance between two points in space-time is reduced if the light takes longer to get there.
