On: I think faster than light travel is possible [video]

[Ono-Sendai]

Why a privileged rest frame avoids paradoxes: It's pretty simple really, I laid it out in my blog post here: https://forwardscattering.org/post/36

[andrewflnr → Ono-Sendai]

So, in the abstract an absolute reference frame eliminates paradoxes, sure, but isn't it the case that in the real universe, every version of the experiment in your blog that has been carried out has found no evidence of such a frame? Because if we're making claims about the real universe as Hossenfelder is doing, that means you can't actually lean on an absolute reference frame. The CMBR might kind of look like one if you squint, but the CMBR comes from matter that is in the end subject to the same relativity we are. Unless some version of the Mach principle turns out be real, with teeth.

[Ono-Sendai → andrewflnr]

Which experiment are you referring to?

Anyway, no experiment to-date has detected an absolute reference frame. But that is not to say that one doesn't exist.

[ShamelessC → Ono-Sendai]

It’s also laid out quite well in the post video.

[andrewflnr → ShamelessC]

It's really not. I have no idea from the video what the actual consequences of privileging the co-moving frame are on an attempt at creating a paradox except "maybe not a paradox! :)"