This is a nice paper. A couple thoughts that I haven’t seen raised yet in the thread:
1) this paper exhibits, for the first time, a continuous family of warp drives which contains Minkowski space (see the end of S.4.3). This means that it is, in principle, possible to turn on/off a warp drive, which is a basic requirement if you ever want to build one.
The next basic feature we need to understand is how/whether warp shells can accelerate/decelerate. No paper in the literature does this yet, afaict. Would be very exciting if Bobrick and Martire can exhibit this in a sequel!
1) this paper exhibits, for the first time, a continuous family of warp drives which contains Minkowski space (see the end of S.4.3). This means that it is, in principle, possible to turn on/off a warp drive, which is a basic requirement if you ever want to build one.
The next basic feature we need to understand is how/whether warp shells can accelerate/decelerate. No paper in the literature does this yet, afaict. Would be very exciting if Bobrick and Martire can exhibit this in a sequel!