User blog:Mr.Robbo/This can't be right.

A while ago, in earlier blog posts (here and here), I mentioned how a scientist called Harold "Sonny" White had shown how you can dramatically reduce the energy requirements for a warp drive metric by making the walls of the warp bubble thicker. Now, the equation he used to calculate the energy requirements for the warp drive came from this paper written by Ford and Pfenning, two renowned physicists in the field of warp drive study, in 1997. The equation that Harold White used is equation number (28), near the bottom of the paper.

Fair enough, but here's what's throwing me; in the same paper there is an inequality (near the bottom again, it's number (23)) that says that the thickness of a warp bubble travelling at, for example, the speed of light, must be below 10^2 Planck lengths*! This means that you can't make the warp bubble walls thicker the way that Harold White describes! Surely such a renowned physicist couldn't have used one finding from a paper while disregarding another. Am I missing something here?


 * 10^2 Plank lengths = 1.6 millionths of a trillionth of a trillionth of a millimetre