3 ms·
But isn't the entire thing that it appears faster than c to an outside observer? Like, that's the definition? In which case an outside observer would have less
by 6gvONxR4sf7o 6y ago
But isn't the entire thing that it appears faster than c to an outside observer? Like, that's the definition? In which case an outside observer would have less than 200 years until the thing went 200ly.
- zamalek 6y agoTo the outside observer, they would be time travelling. "Appear to" and "actually" are two very different things. A traveller with a different procession of time will appear to be going faster or slower than they really should. There are galaxies moving faster than c away from us right now.
- 6gvONxR4sf7o 6y agoIt's a bit mindblowing to apply relativity to that. To any observer, it'll seem like they're time traveling. (any sublight observer, or just any outside observer?)
- zamalek 6y agoSpecial Relativity (the first and ironically simpler of the two, given the name) is really mind-blowing... up until the moment it isn't. In my mind the "cascade of simplicity" occurred when I subconsciously realized that bullet-time mechanics could really occur is a multiplayer game. The player in bullet-time would experience higher tickrate that anyone else, meaning that anyone else would see them speeding away. There's more to make it possible in a simulation, but that's unimportant: you can reason about these scenarios. My reasoning maybe incorrect, but it does afford me the ability to approach these mind-blowing subjects. Either way, it may be impossible for a subluminal observer to identify a superluminal apart from a warp traveller (aside from the former being outright impossible). The observation is identical, the cause is completely different.