copy from geometry
Ok Einstein saw but with calculus. The Light Square is basically what he considered our 4D reality. What won him fame is that he figured out that the Area of the LS and the Arc Triangles (AT)(gravity) never changed just the shapes with the angle, and that changed our space time. He basically used the Y axis as time. As you change the angle you stretch time and compress length Ychange picture. Also notice the huge change in AT and which axis they lie on.
The area of the LS is 423,966,494.1036.
The area of both Arc Triangles are 70,588065044,315097.0307366