Travel, on the other hand, is a much looser term. Alcubierre drives, in theory, travel faster than their speed via distorting space. Until recently they were merely interesting mathematical curiosities, but recently new variations that allow them to be constructed by a non-godlike tech level have been discovered.
Travel, on the other hand, is a much looser term. Alcubierre drives, in theory, travel faster than their speed via distorting space. Until recently they were merely interesting mathematical curiosities, but recently new variations that allow them to be constructed by a non-godlike tech level have been discovered.
[EDIT: whoops, double-post.]