Steven Hawking proposed an intriguing alternative to the normal idea that black holes are singularities from which nothing can escape:
… in the 1970s, Hawking also showed that black holes can slowly shrink, spewing out ‘Hawking radiation’. In that case, the event horizon would, in theory, become smaller than the apparent horizon…If Hawking is correct, there could even be no singularity at the core of the black hole. Instead, matter would be only temporarily held behind the apparent horizon, which would gradually move inward owing to the pull of the black hole, but would never quite crunch down to the centre.
While I would think a singularity is what would create the phenomena we recognize as the apparent horizon, it’s interesting to think: there may still be some hope for matter or light that gets past the event horizon – the point of no return, so to speak.
Maybe there’s some hope for the hyperdrives/sub-light engines/warp drives after all.