The Vanishing Point: Gemini and the Boundaries of Perspective

The line of the horizon marks the end of our perception. It’s a literal vanishing point, the boundary of our established experience. In recent centuries we understand that this is more optical illusion than geographic fact: the world is not flat, and there is no point where we — or our experience — drop off the face of the Earth. The Earth is round. Sometimes advancement is circular.

Gemini was the patron constellation of those who bravely pursued the horizon. Its appearance in the sky heralded the stormy season, a physical…