As for bending space and time, it exists. Black holes do it, why the long face?
that made me chuckle

.. i just mean.. its sometimes a cop out- for people to say that aliens use warp holes. We know very little about warpholes (if anything!), and so it is just as an empty argument (if we are looking for evidence based explanations) as saying " god put the aliens there"- he may well have done, but where is the proof.. our knoledge of the insides of blackholes is zilch, and for the forseeable future will remain, zilch.... while warpholes etc may well be easier to explore, at the moment we have no evidence to support any useful function..
i admit i don't want to believe in aliens, i like to sleep at night, and i'm not commenting on the validity of videos etc, but i found that one argument (forgot who said it, a page back) a cop out against the argument about the timescales needed to traverse galaxies..
EDIT-
anything with mass, bends time and space, black holes have lots of mass (although not neccersarily huge densities, it should be noted), and so their escape velocities exceed the speed of light. Unfortunately people sometimes have the idea of space being a 2d plane, and come to the assumption, if i can fold it in half, i can reach the other end. Well i am far from a theoretical physicist, and i'm not going to say somthings impossible, but i do get frustrated when people come up with half baked excuses when they don't have the evidence, and certainly not the qualifications to do so...