This is in response to John's remarks on black holes...

I thought that although there was a theory about the change undergone by mass caught within the field of a black hole, it didn't actually 'disappear' nor did it dissipate, as the increased mass of the black hole was represented by a proportional increase in the gravitational field it projected, there being a direct link between the critical mass for a potential black hole and the gravitational field required to prevent the escape of light...

So, black holes don't 'go' anywhere, nor do they pose a possibility for 'travel'. You smash into the ultra compacted (and some say reformed in a manner not possible outside of a black hole) matter which was originally the star that collapsed, and your mass is added to the mass of the hole itself.

The tricksy thing about black holes and why they represent so many scientific possibilities is that the universe as we know it is limited by a series of physical laws which as far as we know are ordinarily unbreakable. Except within the fields of black holes perhaps. And now at sub string level they say too.

Anyway.

Still doesn't support the idea that you could fly into a black hole and go anywhere except the physical space at the center of the black hole. The only interesting thing would be how broken down your component bits would be.