Do you believe in the concept of Wormholes in space - ie tunnels with two ends separated by a transcendental bijection of the spacetime continuum?

Tunnels, not exactly, but points in space that overlap or are pulled unnaturally close by gravitational anomalies and would allow the travel of vast distances in a fraction of the time, yes. Which is slightly different than the true theory of a wormhole but it's similar enough to pass.