I'd love this to be true. I really would. But as with any extraordinary claim, extraordinary evidence is needed , and extraordinary caution is warranted. Here's a different perspective:https://bigthink.com/starts-with-a-bang/no-warp-bubble/
Hyper-Fast Positive Energy Warp DrivesErik W. LentzSolitons in space-time capable of transporting time-like observers at superluminal speeds have long been tied to violations of the weak, strong, and dominant energy conditions of general relativity. This trend was recently broken by a new approach that identified Soliton solutions capable of superluminal travel while being sourced by purely positive energy densities. This is the first example of hyper-fast Solitons satisfying the weak energy condition, reopening the discussion of superluminal mechanisms rooted in conventional physics. This article summarizes the recent finding and its context in the literature. Remaining challenges to autonomous superluminal travel, such as the dominant energy condition, horizons, and the identification of a creation mechanism are also discussed.
The most glaring challenge is the astronomical energy cost of even a modestwarp drive, currently measured in solar masses where kilograms is closer to thethreshold of human technology. Extreme energy savings is going to be necessary –tens of orders of magnitude – to bring the energy required for a warp drive downto a level that can be tested in a laboratory setting let alone be considered a viabletransportation technology.There exist numerous techniques for reducing the energy requirements of theAlcubierre solution, several of which have been very successful in reducing the(magnitude) energy requirements of the system in excess of thirty orders of magnitude. Unfortunately, each one of these methods in their presented formsrequire negative energies themselves. One possible approach to uncovering significant energy savings is to modify one of these existing techniques to obey the WEC.If the required energy can be sufficiently reduced, the next hurdle to approach ismodeling the full life cycle of a physical warp drive (creation, acceleration, inertialmotion, deceleration, and diffusion). Every previous publication in the field of warpdrives has either assumed inertial motion (constant velocity) or has produced anaccelerating/decelerating drive that violates the law of covariant conservation ofstress-energy-momentum that accompanies the Einstein equation
A real warp drive need only do to space time what a ‘soap drive’ does for a soap boat. A warp drive needs to break or reduce the surface tension of space time at the stern of the starship and let the surface tension at the bow and around it to draw the starship forward. I believe we see this in action in the universe and the soap of the universe seems to be theoretical dark energy.Theoretically dark energy seems to break the surface tension of space-time. In doing so it causes the expansion of the universe in such a way that many distant portions of our universe are moving away from us, and us away from them, at rates greater than the cosmic speed limit.I believe one can see where I’m going with this. A real warp drive would need to be able to generate or collect enough dark energy and concentrate it at the rear of the starship thus causing the ship to be drawn forward by the ‘surface tension’ of space-time at a rate proportional to the amount of dark energy available.
Key takeaways: In order to make a working "warp drive," there must be some way to not only curve the fabric of space, but to curve it in fundamentally different directions ahead of and behind the spacecraft. By creating a positively curved region "contracting" the space in front of a spacecraft and a negatively curved region "rarefying" it behind, a "warp bubble" could be created. However, that would require negative mass/energy, and negatively-gravitating antimatter could have done it. Unfortunately, physics said otherwise: antimatter falls down.
Article: "Warp drive's best hope dies, as antimatter falls down," Big Think, 3/10/2023. Alcubierre drive relegated to fantasy.QuoteKey takeaways: In order to make a working "warp drive," there must be some way to not only curve the fabric of space, but to curve it in fundamentally different directions ahead of and behind the spacecraft. By creating a positively curved region "contracting" the space in front of a spacecraft and a negatively curved region "rarefying" it behind, a "warp bubble" could be created. However, that would require negative mass/energy, and negatively-gravitating antimatter could have done it. Unfortunately, physics said otherwise: antimatter falls down.