Can We Ever See the Edge of Spacetime? Ethan Explains

Humanity has long pressed its instruments against the outermost walls of the knowable, but the question of whether spacetime itself possesses an edge — and whether any observer could ever perceive it — reveals a boundary not of distance or technology, but of principle. Drawing on general relativity, quantum mechanics, and cosmology, physicists find that the very structure of the universe may render such an observation not merely difficult, but logically and physically impossible. This is not a confession of ignorance so much as a discovery about the shape of knowledge itself.