I'm interested in people's views on the perceived differences and/or similarities between 'coincidences' and 'synchronicity' (simultaneous occurrences that are meaningfully related), and people's experiences they may have had. I thought it would be a good idea to bring these 'topic areas' together under one roof as I have already come across various posts that briefly flirt with one or the other, but never (to a significant degree) within the same thread.
Other concepts you will no doubt find feature prominently within this topic area include that of 'causality', 'insight', extra-sensory perception, Déjà vu, telepathy and the argument of whether the mind is separate from the brain and merely operates through it (or the 'Nonlocality Theory').
There are a great many authors who have come up with different names for similar concepts which include Arthur Koestler's 'Roots of Coincidence', J.W Dunne's 'An Experiment with Time', the work and essays of Carl Gustav Jung (who originally coined the term 'synchronicity'), Horace Walpole's concept of 'serendipity' or "the faculty of making happy and unexpected discoveries by chance", Paul Kammerer's Law of Series (which suggests that random events happen in clusters), Camille Flammarion's book L'inconnu: The Unknown, a collection of psychic experiences where he mentions the now famous story of the author Émile Deschamps and the plum pudding incident.
Many of these authors had differing explanations for the concepts however. For example before he committed suicide, Kammerer in his Law of Series suggested that there was an as-of-yet unknown mathematical law or "law of seriality" where seemingly ridiculous coincidences were nevertheless a law of nature that science hadn't yet been able to explain. He then went on to project the notion that while these kind of events did happen in clusters, they were however natural and not "causal" in nature.
Now while Flammarion's theories generally 'agree' with Kammerer's law of seriality (the serial clustering of coincidences) which in hindsight was an example of a kind of 'mechanical synchronicity' - remembering that Flammarion and Kammerer's ideas predate those of Jung who didn't coin the term synchronicity until his essay entitled Synchronicity: An Acausal Connecting Principle in 1952, Flammarion does suggest an alternative type of 'synchronicity': that where the mind itself is able to influence the laws of nature. He gives an example of the latter in the following story he recalls in his book The Unknown:
The story goes that while he was writing a book one day, a strong gust of wind carried the pages of the chapter he was working on out of a nearby window and all over the place. It just so happened at the same time that it began to rain, and because of this he decided not to bother going to pick them up as he felt it would be in vain. To his surprise a few days later, a chapter from a book arrived from the local printers. As it transpired, the porter from the local printing office had just so happened to be walking past at the very moment the pages hit the floor and assumed he had dropped the papers himself. Because of this he hastily picked them all up before the rain did any damage to them (remember this was before 1900). He then placed them in order and took them to the printers to be printed off. What the subject of the chapter? 'The Wind...'
Other authors too have flirted with these notions .
According to the author Martin Plimmer in the book Beyond Coincidence, the author and playwright Pearl Binder together with two other collaborators, once planned to create a satirical novel . They went about this by inventing a situation in which camps for the homeless had been set up in Hyde Park, and had decided on having a refugee Viennese professor called Horvath-Nadoly; a broken old man with a Hungarian-sounding name. A few days later they read in a newspaper that a homeless foreign old man had been found wandering alone at night in Hyde Park (I also want to add that as I was writing this very section for the forum post, my girlfriend and I got a knock on the door. Though she answered it, she said it was a young homeless man with some papers asking if we could give him some food. Now I live in rural Northumberland (basically in the middle of nowhere because it's the least populated county in the whole of England) and we have never in the over 10 years of having lived here, ever had a homeless person knock on our door - I actually had to rethink about what had transpired to make sure I wasn't imagining it).
Going back to this Horvath-Nadoly fellow, we can see that the three protagonists contributed to an "impossible coincidence" or maybe perhaps participated in an unconscious recital of a name they had earlier encountered.
There are literally tons of other authors, examples within the public sphere and other concepts related to these that I will happily let others contribute if they so wish, though have you had any personal experiences and what's your view on these?
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Other forum posts relating to the topic:
Coincidences:
http://www.unexplain...&st=0&p=4083987
Synchronicity:
http://www.unexplain...&st=0&p=2619722
http://www.unexplain...&st=0&p=4611275










