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gr-qc2003★ 1 cited
Time machine (1988--2001)
S. Krasnikov
A very brief and popular account of the time machine problem.
gr-qc2003
The wormhole hazard
S. Krasnikov
To predict the outcome of (almost) any experiment we have to assume that our spacetime is globally hyperbolic. The wormholes, if they exist, cast doubt on the validity of this assu…