Really I've heard that fold space is actually a simpler proposition compared to "warp" and "FTL" speeds, for that matter the Bab 5 and HH "Hyperspace" might be an even more accurate form of what FTL may look like in the future if we ever get it.
Oh and El_Phil as far as internal gravity goes I've read up on some stuff and other folks think that all it would take to get internal gravity is to have a "hyper dense" alloy or material located at the bottom of the ship to create a "pull". What is your opinion on this please
