The premise that the speed of light remains an absolute limit even if warp drives are possible, while depressing, makes sense. The article didn't mention whet

The premise that the speed of light remains an absolute limit even if warp drives are possible, while depressing, makes sense. The article didn't mention whether this version of the Alcubierre drive would be useful for intra-system travel, although I suspect it would shake out that the energy requirements would be so great as to make it less efficient than regular old rockets. But a Cowboy Bebop style portal network that gets us around the solar system at even a fraction of C would still be useful. As an aside, Google now says Mars is 3.5 light years away, thanks to an obviously AI generated "expert answer" from a site I've never even heard of. An excerpt: It would take around 3.5 years to get to Mars at the speed of light, but current technology can only achieve a fraction of that speed, making it impossible for humans to travel that fast. Therefore, spacecraft take about seven months to reach Mars. I really, really hate AI.