It is a well-known established fact throughout the many-dimensional worlds of the multiverse that most really great discoveries are owed to one brief moment of inspiration.
There’s a lot of spadework first, of course, but what clinches the whole thing is the sight of, say, a falling apple or a boiling kettle or the water slipping over the edge of the bath. Something goes click inside the observer’s head and then everything falls into place.
The shape of DNA, it is popularly said, owes its discovery to the chance sight of a spiral staircase when the scientist’s mind was just at the right receptive temperature. Had he used the elevator, the whole science of genetics might have been a good deal different.
Terry Pratchett, Sourcery
-Seattle Mystery Bookshop