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A comment on New study simulates gravitational waves from failing warp drive. Parent comment

Re:New study simulates gravitational waves from failing warp... by altruios on Monday July 29, 2024 @03:57PM (#41103235)
> The physically-possible warp bubble lets you slow down time.

that... seems odd to me. without substantial changes in velocity - how does a warp bubble (that's sub-luminal - so relativistic velocities) alter the fabric of space-time so fantastically? It's not moving fast: so where does the time dilation come from?!

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Re:New study simulates gravitational waves from failing warp... by JumpCrisscross on Monday July 29, 2024 @04:06PM (#41103295)
> not moving fast: so where does the time dilation come from?!

I think it’s from shifting momentum?? The paper is far beyond me [1]. But as I understood it, you’re directly modifying space-time with energy instead of using acceleration as a go-between.

[1] https://arxiv.org/html/2405.02709v1

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Re:New study simulates gravitational waves from failing warp... by ben_w on Tuesday July 30, 2024 @02:23AM (#41106511)
The mass distribution in the metric can do that; IIRC this was chosen in order to not have time dilation, so I think someone's getting confused (and maybe that someone is me?)
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