[HN Gopher] The horizon problem for faster than light travel ___________________________________________________________________ The horizon problem for faster than light travel Author : hhs Score : 19 points Date : 2022-01-18 20:35 UTC (2 days ago) (HTM) web link (eriklentzphd.blogspot.com) (TXT) w3m dump (eriklentzphd.blogspot.com) | awb wrote: | > But what is the horizon problem? Is it some single well-defined | concept or a catch-all term for many phenomena? | | Granted this article is largely above my reading/comprehensive | level, but after describing multiple types of horizons and then | saying a wrap drive horizon largely resembles a black hole | horizon, I can't see where the author actually defines "the | horizon problem". | hhs wrote: | > "the horizon problem" | | It looks like the author was referring to this: "Horizons pose | an issue for warp drives as one cannot control the warp bubble | if one see or communicate with it." | | And for more context, the author seems to note that faster than | light traveling is possible under Einstein's physics: | https://www.sciencealert.com/faster-than-light-travel-is-pos... | stevebmark wrote: | Faster than light travel and time travel are both fundamentally | impossible in our universe and can't be achieved. I'm sure we'll | learn all sorts of cool things looking for ways in. The reality | is these will sadly live only in science fiction. There are | plenty of things that are fundamentally impossible in our | universe, faster than light travel being one of them. ___________________________________________________________________ (page generated 2022-01-20 23:00 UTC)