Tobin wrote:What I am talking about are proposals that there may be shortcuts through distortions in space-time at the quantum level that people think may exist and could use as a means of communication... you could utilize these distortions to shorten the distance between objects to allow this type of instantaneous communication.
Like wormholes etc? Whatever you call the mechanism, just call it "X", I think the idea is that when the space-time distortions or "X" are used as a telephone line by two people, causation is violated in the context of relativity. You may not believe the QM world is bound by relativity, but you must believe people are. I will probably screw this up if I try to explain it, I'll have to look for a link or maybe summarize it later after doing some reading, but I think you're concentrating too much on the mechanism. If two people are allowed to communicate instantly, it doesn't matter HOW that communication happens, a paradox is allowed where a message is received before it is sent. That's true in the case of the telephone line being a worm hole, exploited entangled particles, distorted inflatons, tachyons, or anything else.
Anyway, if you are interested in this topic and want to discuss it with people interested in it and do this professionally, I'd recommend visiting forums like the Physics Forum and asking questions. I think you'll find that there are a number of views on this and differing views about whether or not causality is necessarily true.
Just to clarify again: from the article I linked to in SEP, it's clear that real physicists, even famous ones, have held views about "causality" breaking down in the quantum world, and the quantum world allowing for backwards causation, or what, paradoxes, or seeming-ones I guess. Well, certainly, QM isn't properly bound to relativity. If you are saying professional physicists on these forums debate the status of causality at the quantum level, then I won't find that totally shocking even if my gut feeling is that stronger training in philosophy would likely convert many of them away from this idea. However, if you are saying professional physicists on these forums are arguing causality does not hold for "large" objects known to be governed by relativity, such as people, then I would find that shocking, and if you could link to such a thread, I'd be very interested. If causality does not hold, then paradoxes are allowed, right? So you're saying that some professional physicists are arguing for the viability of rejecting causality in the macro world, and thus allow for one to go back in time and kill their grandfather, or receive messages before they are sent?