A wormhole might need more stable than previously thought

[John Clark]

A wormhole is able to remain stable and open without requiring exotic matter.

Wormholes may be viable shortcuts through space-time after all

Infall time in the Eddington-Finkelstein metric, with application to Einstein-Rosen bridges

John K Clark

[Lawrence Crowell]

I would say caveat emptor. I suspect this is an artifact of the eternal black hole metric. These are the idealized solutions for a classical spacetime that has eternally existed and will eternally exist into the future.

LC