Cambridge Coincidences Collection

As of the 23rd May 2022 this website is archived and will receive no further updates.

understandinguncertainty.org was produced by the Winton programme for the public understanding of risk based in the Statistical Laboratory in the University of Cambridge. The aim was to help improve the way that uncertainty and risk are discussed in society, and show how probability and statistics can be both useful and entertaining.

Many of the animations were produced using Flash and will no longer work.

Well I Never!

Professor David Spiegelhalter of Cambridge University wants to know about your coincidences!

'In My Life' Coincidence

The Beatles' song 'In My Life' was in my head yesterday (Thursday, January 19). I had only been listening to the CBC radio for the six o'clock news. Tonight, a show playing on the same station played that same song.

The Testament of Gideon Mack by James Robertson

I was given this book as a present and settled down with it on Good Friday 2007 (6 April) in what became a compulsive period of nonstop reading. This book relates the 'last testament' of a disgraced Scottish minister, Gideon Mack, whose mind was undone after he fell into a treacherous underground river, was lost for three days and re-emerged claiming to have spent his missing time in the company of the Devil in an underground cave. On page 262, in the Penguin paperback version which I read, as part of Gideon Mack’s claim that he met the Devil, he noted that his wristwatch had stopped at 3:37 on the sixth day of the month. As I read that line, I looked up from my reading at the wall clock and it was exactly 3:37 on the sixth of April 2007! Spooky.....................

Airborne in Asia, by Darcy Rezac

On a flight from Hong Kong to Kula Lumpur in 2001, I exchanged a few pleasantries with the chap next to me. But since he had a thick book open I did not chat with him until the meal. When we talked, we hit it off. It turned out he was on his way to Myranmar to work on a mine and to my surprise he was from my hometown, Vancouver, Canada. Small world? It gets better. I gave him my business card and his eyes lit up. "This is absolutely incredible," he said. "I've just read about you in this book. Would please sign your name in the margin on page 555," he implored me. Startled, I looked, and it was "The Titans" by Canadian business historian Peter C Newman. I was at once somewhat embarrassed but pleased to sign his book...what was truly amazing was that I get only 7 lines in a 900 page book and he had just read them five minutes before we chatted. (From page115, "Work the Pond! (Prentice Hall)" by Darcy Rezac, Judy Thomson and Gayle Hallgren.

exact unlikely words 25 yrs later

My grandmother died in 1971. My mom and dad were at the hospital. As my grandmother was fading in and out of consciousness, my grandfather asked the nurse in a loud voice, "If she dies during the night do we have to come over here?" My mother thought it was a horrible, selfish thing to say and she talked loudly about something else into my grandmother's ear. She mentioned this throughout my life. In 1995, my dad and I were at the hospital as my mom was dying. She was unconscious on a high dose of morphine. My dad turned to the nurse and asked, "If she goes during the night do we have to come back to the hospital?" I ran over to mom to talk to her. I suddenly realized it wasn't a selfish thing to say. My dad was a devastated. He just didn't know what to do. Do we come back and sign papers? Do we come back to the hospital and arrange for the funeral home to come? I told my mom not to be mad at my dad, he wasn't being selfish, he loved her, he didn't know what to do. Then it hit me what an incredible coincidence it was and I started to laugh. I was crying and laughing and defending my father to my mother.

The strangest co-incidence of my life. adult rated.

In 1974-07 I received a brochure advertising an 8 mm porn movie. This was not unusual. I was active in gay lib and as a result was on all manner of junk mail lists. The movie featured a handsome, spectacularly well hung black guy. I showed the picture to my lover Jimmy L.. He too was quite turned on by the picture. I said, "I am going away for a business trip in Calgary. If you get a chance to have sex with a well hung black guy while I am away, do it. So will I." We were monogamous, with a playful sex life full of fantasy and role playing. To me this was just a fantasy. At that time, there were almost no black people at all in Vancouver. You might see one every ten days or so. I thought it would be fun to imagine such an encounter, but felt there was almost zero chance of it actually happening for either of us. When I got back, Jim said, "I think you are going to be mad. I had sex a well hung black guy. Not only that, he is the guy in the movie." It turned out Jim was not pulling my leg. Don B. (the porn star) had come to Vancouver on vacation. He went to Have A Gay Stay to arrange cheap accommodation, and David L. sent him to stay with us.

Grandfather Writes Home

After marriage, I rented and moved to a small house in Toronto, Canada. Shortly after my move, my aunt died; and I was in charge of looking through my grandparents' papers. As I am a writer, I was interested in particular with an envelope containing my grandfather's attempts at getting published. One letter came from a literary agent who seemed to be defending himself against having published my grandfather's work without paying him. This letter was sent 150 km to my grandfather (who lived near Niagara Falls) from the exact address of the house I had recently moved into. My grandfather had been writing to my home over 40 years before I lived in it! And there I was, 10 years after my grandfather's death, reading a letter that had been sent from "my new house" to my grandfather over 40 years ago.

Outlier, you're going to hate this

The last problem I had in math was trying to work out how to combine a poisson distribution with an exponential distribution to get queue depths. I am not a mathematician but work has forced me into some understanding. (Sigh, discreet mathematics is so much easier.) Despite the following, I am also a godless philistine and to my disappointment the following experiences get less frequent the older I get. My father has similar experiences, but I don't know about previous generations. I don't know if it has also tailed off for my father who surpasses me in this kind of reverse delayed choice quantum eraser thing. As a thirteen year old, my sister and I were in the back seat on the way to Peterborough Ontario. She suggested playing hangman, which is a game where you have to guess the letters of a word and finally the word, before completing the drawing of a hung stickman. She wrote down nine underscores and immediately, in a rush, came back a dream I had had of exactly where and when we were in. I said the answer was "Spiderman" and she showed that she had secretly written the same.

An Old Photograph

3 friends and I shared an old farmhouse in Mexico, NY in the early 1970s. We were the first people to live there that were not family. The last residents had left in a hurry for a gig in Vermont and left a friend in charge of renting it out. There was a woodburning stove for heat. A two seater outhouse attached to the back of the house. An old fashion pump in the sink for water. The house was full of Victorian furniture, ceramic pitchers and washbasins... a treasure everywhere you looked. The closets were jammed with items that told a story of the many generations that had lived in the house. Everything was in disrepair. My friends and I would return from our jobs, and every long winter night, we would huddle around the dining room table studying photos and reading correspondence - the people in this family were letter writers! They saved everything. We found a shoebox with letters wrapped in linen, written in the late 19th century. The correspondents were lovers, having an affair. He would write on one side of the paper, and she would reply on the other. The letters were delivered in secret by "B". There was one photo ... a glass negative....

Three brothers born on the same date

My father was born on January 25, 1933. His twin brothers were born two years earlier, in 1931, also on Jan. 25. For several years, until a fourth brother was born in April 1940, my grandparents celebrated all their three children's birthdays (they had no daughters) on the same date. It so happens that my brother (i.e. my father's son!) was also born on January 25th.

So We Meet Again

When I was a child, my parents bought a camper van through an ad in the classifieds. The man who sold it to us lived a few hours drive from our house. That summer, we drove 1600 miles to the east coast of Canada. We stayed in a camp ground with no one else there but one guy with a van: it was the man who had sold us our van.

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