Not only does no one know where the ideas came from, it was not so long ago that no one particularly cared.
Sometimes it's just a teasing nod to the conventions of the comic – why does no one know the name of the bairn?
"Not only does no one know how their child would be affected by Down's, but the big conflict for women is the adult the child will be 20 or 30 years down the line.
The simple depressing fact is that not only does no one know, but the cynical take might be the accurate perspective in this case.
But, if that's what they do, no one knows how they do it — or why they often stop working, as eventually happened with the golfer who could swing when his caddie was poking him in the cheek.
And if they did, no one knows whether they could have weakened the lithosphere as much as the new model implies, says Patrice Rey, a geophysicist at the University of Sydney in Australia.
Until more research is done, no one knows if the smaller dose will offer lifetime yellow fever immunity, nor whether it will be effective protection for children or people with weakened immune systems.
Why he did what he did, no one knew.
