"We have not seen any country where fertility rates have declined very dramatically [only] to have seen them drift back up to the replacement rate," he says.
A succession of chief executives who couldn't quite decide whether it was a technology company (a good thing in the fast-moving world of internet brands) or a content company (a dangerous thing, because content is almost infinitely available, and carries little to distinguish it) have seen that drift continue.
We have seen that drift can lead the separate subpopulations of a species to diverge genetically.
It sounds an awful lot like what I came into medicine for 40-odd years ago, but which I have seen start to drift away.
Its most recent meetings, however, have seen the G-20 drifting without much sense of direction, often hijacked by the ephemeral crises of the moment and tending toward a glorified photo-opportunity.
Blamed for causing the crisis and reviled by many for implementing the measures demanded by the EU and the IMF as part of Greece's combined bailouts worth €240bn (£190bn), the coalition partners have seen votes and MPs drift further to the left and right.
Bond could remember "the days when he had seen them drifting the fast sweeping bends of Tripoli at 190, or screaming along the tree-lined straight at Berne with the Auto Unions on their tails".
Such a journey, he said, could help Koreans affirm their shared national identity after decades of separation that have seen the two sides drift apart in language, culture and economy.
This is M Night Shyamalan's first venture into television also, after a strange career that has seen him drift from a wunderkind, a latterday combination of Hitchcock and Spielberg, to box-office poison.
And, from what I have seen, there are many more out there, discontented and drifting dangerously.
