Yes possibly, everything is possible or can be true unless we prove it right (if it is possible) unless we prove it false (if possible too) so this might be the answer.
I personally think that maybe our knowledge do not permit us to understand a way to travel but not by the way we think about. Maybe we can access to a sub-space or something like that simply would make take us a shorter path a bit like when we say that to go at the opposide side of the earth it take 22'000 km, but if we pass trough the heart of the earth it only takes ~14000 km however we do not what is under-earth and how to do that.
This but at an other scale (of thought not distance).
I like to think of it as under space ;0)
If you prefer, i'm not a native speaker i don't always hold the right term, tank's for correction