Are #WarpDrive s for #FasterThanLight travel viable?

TL;DR: "maybe"

#HamedBarzegar, #ThomasBuchert + #QuentinVigneron extensively review the peer-reviewed literature on #WarpDriveSpaceTimes, list the errors, and say that "most claims ... of physical warp drives ... [are] highly challenging to justify".

#FTL #GR #cosmology @cosmology

[1] "General formalism, classification, and demystification of the current warp-drive spacetimes" #ArXiv_2602_16495 https://arxiv.org/abs/2602.16495 #ArXiv260216495