New research reinterprets the Einstein-Rosen bridge as a connection between two directions of time rather than a spatial shortcut. The study suggests this view could resolve the black hole information paradox and point to a universe that existed before the Big Bang. It was published in the journal Classical and Quantum Gravity.
Physicists Enrique Gaztanaga, K Sravan Kumar and João Marto argue that the 1935 Einstein-Rosen bridge was never meant to describe a traversable wormhole. Instead, they say it represents a mathematical link between two symmetrical copies of spacetime, each with an opposite arrow of time. This interpretation arises from applying modern quantum ideas to the original equations that connect gravity and quantum fields.
