There are also several misunderstandings that I see arising from this article. One is that although the proposed engine would accelerate you rapidly, it can't violate relativity. This means the "80 day" to another star figure, must be from the perspective of the astronaut. It would still be 3+ years to the nearest from earth perspecitive.  Also, when you learn about relativity, you'll find out that the speed of light limit is not arbitrary. There are huge contradictions for going faster than speed of light. One of which is that is that you would violate causality.

Also for those of you quick to point this out, the proposition that there are different laws of physics in other dimensions is an assumption made by the article, a bad assumption. The idea that the laws of physics are constant is a central axiom. If they could change so dramatically they the probability of interaction must be really low.