There is no air between us but energy comes from reading this article su science fiction.com talking about warp speed...

White announced that his team at LSI managed to create, effectively by accident, a real warp bubble. White specified:

To be clear, our discovery is not analogous to a warp bubble. It is a very real, albeit small and modest, warp bubble. That's why it's so important.

In the interview released after the publication of the study in the European Physical Journal (international reference and highly reliable journal) White said:

Our detailed numerical analysis of the Casimir cavities helped us to identify a real and artificially reproducible nano/microstructure that can generate a negative vacuum energy density that manifests itself as a real curvature bubble on a microscopic scale. Not an analogous thing, but true and real.

White says that doesn't mean we can start building a warp drive tomorrow, there's still a lot of science to develop before we get there. But, he lets slip, it's a starting point to get to that finish line.

In short, if one of your dreams is to travel among the stars, perhaps there is some hope of seeing it come true.

This news lit many light bulbs in me but above all I imagined being in front of my best friend and saying to him “you know… it's not air between you and me but it's energy. And if by chance in this instant you get pissed or feel any emotion, know that this energy would take on a shape, a color... not visible to us... but capable of influencing us beyond thought and consciousness!". Warp speed is a real issue.