OK, after a lot of thought I believe I'm finally starting to understand.
Part of the reason I was confused was that I'd misread the diagram of the paradox. The "third leg" isn't superluminal communication - as you say, it may as well be that Dave drops a stone tablet with the message...
OK, thank you. That's what I thought, but since I'm no expert in the area, I wanted to make sure I wasn't missing anything.
I think I phrased part of my description poorly, but it may also help for me to explain the reason I got into this line of thinking as well.
If it helps, consider...
Thanks Fredrik.
I'm mostly just trying to wrap my head around the implications of relativity and that specific paradox. Here's the thought experiment I had in mind:
Assume that it's possible to build a device which can communicate on a point-to-point basis with another similar device at...
I apologize if this has been asked before. I searched numerous times and couldn't find any discussion on this specific topic.
Every description I've read of the impossibility of FTL signaling uses some variation of this diagram:
http://www.theculture.org/rich/sharpblue/archives/000089.html...