THE TESSERACT IN INTERSTELLAR IS THE MOST SCIENTIFICALLY ACCURATE VISUALIZATION OF HIGHER DIMENSIONS EVER PUT ON FILM. Here’s what you actually saw: Time displayed as a physical, navigable structure—not a line moving forward, but a landscape you can walk through. Einstein’s relativity unites space and time into spacetime—a single four-dimensional fabric. The tesseract is what that fabric looks like from inside a supermassive black hole, where familiar physics completely breaks down. Cooper doesn