A couple of years ago film-maker David Bond realized that his children, then aged five and three, were attached to screens to the point where he was able to say "chocolate" into his three-year-old son's ear without getting a response.

In the graph below, the bond market is at equilibrium at point a, at the intersection of the supply of bonds, s, and the demand for bonds, d.

The long bond fell more than a percentage point, while every other economic indicator that signals a weaker dollar and higher inflation also rose.