What if our universe has a secret side? Top physicists say a hidden fourth dimension could be shaping everything from gravity to the way matter works. It’s not just sci-fi—string theory and wild analogies (think: flatlanders and garden hoses) suggest extra dimensions might be real, just curled up too tiny for us to see. Imagine if gravity is weak because it’s leaking into these invisible directions! The hunt is on for proof, and if true, it could totally change how we see reality. #Science #FourthDimension #Physics