Have you ever caught yourself wondering, upon observing a seemingly utterly unlikely coincidence, whether there was anything supernatural at work that made it happen ? I would guess that all of us, even the most rational thinkers, have caressed that thought for a minute, at least once. A few typical examples can be given of situations which one apparently fails to ascribe to natural causes:

1) Grandma dreams of her deceased husband spelling a sequence of numbers, and the following day she sees the same sequence coming out at Lotto. Was grandpa trying to let her win a large sum ? It will be quite hard to convince her otherwise.

Americans, but in general scientists, and science-lovers of any country, should be proud of the achievements of the Tevatron collider, the 2-TeV proton-antiproton collider build over a quarter of a century ago under the prairie of Batavia (IL), and which is still the world's most powerful, and may I say successful, particle accelerator ever built by humans.

The web site of the Cornell preprint archive, arxiv.org, says it best: successful submissions to the preprint archive are a source of considerable pride (darn it, the page with the exact statement is only available just after you submit a paper, so I cannot quote it literally here since my browser has by now forgotten it!).

Ah, the pleasure of study! I had forgotten the immense intellectual pleasure one may derive by reading a stimulating, informative book. And if half a lifetime has passed from the last time you studied something, and what is left in your brain of it is just Culture, then reading it back again combines the pleasure of the discovery (a rediscovery, in this case) with the one of putting things in perspective, combining the bits of information you recollect with all the knowledge you have acquired since the last time you put the book down.