Is Faster-Than-Light Travel or Communication Possible? (1997)

Nice list and currently no. But many theory's that say it is possible, no experiments shown it to happen and indeed faster than light gets for many down to causality. Not saying it is impossible, but in theory anything is possible until proven or disproven.

Another article that raises the same question is http://www.bbc.com/future/story/20150318-will-we-ever-speak-...

Now one aspect I'll add is that it may be possible but would the integrity of the information communicated be maintained and with that it would still be a case of no.

For me a related theory is that black holes convert mass into energy and that energy dissociates with current space and time and some of that ends up at physical location in space of 0,0,0 and time 0 as that is the earliest point in time and space. That and with all black holes over time venting so to speak to that point in space in time, was the reason for the big bang. Again a theory of mine. Now in that case something from now has gone back in time and yet has it gone faster than light? Or indeed is there anything sent that is recognisable from when it entered and in that case - no. So again whilst FTL communication may be possible, the whole aspect of integrity of that communication is a whole other aspect.

Equally the speed of light, there is another theory that the speed of light has varied over time (VLS Variable light speed) and whilst some observations lend themselves to this, it is still a theory. So that is another aspect in this that needs to be factored in. In short light may of been faster in the past, or it may of been slower and that add's a whole new layer of complexity upon this issue.

Science is fun isn't it, be darn boring when we as a species learn it all, but not in any of our lifetimes and that for me is a good thing. Though like many theories and great scientists there are and still are people who just dismiss without debate and with that how many people in the past burned or killed for saying the earth is not flat. Still be interesting for constructive perspectives and debate upon this, but alas as a subject many just dismiss and blindly label. Which is sad, in any time, even today :(.

He forgot the permutation operator in quantum mechanic... Where causality is put at the intrication level, and measurement of two intricated quantic system are coupled by one another if and only if you can make in the same hesienberg window of dE.dt ~ hbar/2. Hence potentially being an ansible (like in orson scott gard books. (quantum teleportation, alain aspect 1997)

The only problem is having synchronization of time over distance and hoping the dE.dt does not require exponential energy growth over intended distance of communication and that the energy per bit is not too expensive.

But yes this article was indeed done in 1998 where USA university may have discarded science from under developed countries such as France.

See also https://arxiv.org/pdf/1211.6468.pdf, which accompanies a theory recently published in the Archive of Formal Proofs: http://www.isa-afp.org/entries/No_FTL_observers.shtml

It states rigorously what it means to be an object ("observer"), and what it means to travel faster than light, and proves that observers cannot travel FTL. In special relativity, though, not GR yet.

I'm with Betteridge on this one.