Since it's the birthday of Vladimir Nabokov, here's a little quote from this great writer.
"A certain man once lost a diamond cuff-link in the wide blue sea, and twenty years later, on the exact day, a Friday apparently, he was eating a large fish - but there was no diamond inside. That’s what I like about coincidence."
I didn't know this quote by Nabokov when I wrote She Is Not Invisible. I wish I had because it sums up perfectly the way some people have tied themselves in knots trying to explain and find meaning in the phenomenon. And it makes me smile.