Buckle up, science enthusiasts, because we’re about to take a mind-bending trip into the fourth dimension! While we’re used to living in a three-dimensional world, scientists have long speculated about the existence of an extra dimension that we can’t see or even fathom. But what does the fourth dimension actually look like? From tesseracts to time travel, this article from Popular Mechanics dives deep into the mind-bending world of higher dimensions and the mind-boggling possibilities they present. Get ready to have your perception of reality shattered!