Hey, It looks like I'm randomly jumping into a thread related to this topic again. But I find your inferences of how it may work interesting. Also, I kind of wanna chime into the conversation. Anyways, when I read Dark Matters post on dream telepathy I felt like it made sense for dream sharing to work that way. On the other hand, what GoldenSpark mentioned about waking life clues brought up a question to mind. Not that I didn't think of waking life clues before but the question pretty much is this. If our dreaming mind can come up with the best scenario due to waking life clues, whether it be on the forum or with others we know, than what kind of clues would cause that sync?
Also, what are the types of syncs that can be proven without waking life clues?

This is pretty much why I'd like to build on my past experiences with new ones. I know I've had syncs before but as time passes you don't really remember if anything could have caused it. Based on this it seems that the ones that are pretty much concrete proof as of now, are the dreams that convey info to the dreamer that wasn't known before. I can only recall three dreams like that , that were very short and where I only learned a name of a person someone else knew, the type of dog my nephew would get, and i saw a specific place that another dreamer knew. However, i suppose you could come up with ways to call them coincidences too. Nonetheless, If shared dreaming is like a lost skill, like how lucid dreaming is hard for some, i'm not surprised I've had so few concrete experiences. Even so, I do want to experiment with it again. If I fail a good amount of times after experimenting again I will leave it up to possible future dreaming machines.