The need for exotic matter is illusory. The field has to be very carefully tuned and shaped for the effect to emerge, which is why it isn't something you see in common experiments-think of how a laser can just involve light and ruby in a certain configuration,but it took centuries of experiments in optics and light for us to figure out that lasers could be built.

However just because it's rare doesn't mean it doesn't happen-electromagnetic fields in large storm clouds can,in very rare circumstances, warp space to the extent of causing freakish physical displacement. It's possible this has contributed to certain weird aircraft accidents,but it's known for sure that it resulted in a man named Bruce Gernon having a seemingly impossible physical displacement that made his aircraft appear at a time and place it could not physically have reached on its own.

That incident caused an astronomy professor named David Pares to to hypothesize the concept that it was the result of electromagnetic space warping from storm clouds, so he used an aircraft to take measurements of what the magnetic environment was like inside of these systems and sought to recreate the tripolar fields he detected using special EM field coils. Over the last 7 years he's built a series of prototypes and measured their ability to "pull" on space. recently,the company pulled many of its videos and announced they were going silent until late July when they would announce a commercial partnership. pic related

This could all be bullshit, but I'm intrigued by even a remote chance of such technology being possible.