"I was reading Hawkin's Stonehenge Decoded, the last section on the standing stones of Callanish, which Hawkins describes as a kind of Stone Age computer.
I finished the book and immediately picked up Bell's Mathematics, Queen of the Sciences. It opened at Chapter 6, and I found myself looking at a footnote on Stone Age mathematics.
The chances against coming across it immediately after the piece on Callanish were probably a million to one.
Again, last night I was reading an account of the Domenech murder case at Moher, in Galway, and noted that the victim had been at Mary Washington College in Fredericksburg, Virginia, where I had lectured recently. Ten minutes later I opened Wanda Orynski's abstracts of Hegel, and saw that the introduction is by Kurt Leidecker at Mary Washington College. There are nothing startling about these coincidences except the odds against them."