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Object lesson?

That translates into 95 percent of nonelderly Americans—when the law is fully implemented in 2016. That is certainly an increase over the 82-percent level that would have been expected in the absence of the law, but it is not “every single American.”

- The fine print in Obama’s ‘Promises Kept’ ad, WashingtonPost.com, January 6, 2017.

2. The Boeing 787 Dreamliner is a technological marvel. It’s built largely of carbon-fibre composites rather than aluminum, which makes it significantly lighter than other planes. Its braking, pressurization, and air-conditioning systems are run not by hydraulics but by electricity from lithium-ion batteries. It uses twenty per cent less fuel than its peers, and so is cheaper to run, yet it also manages to have higher ceilings and larger windows. It is, in other words, one of the coolest planes in the air. Or, rather, on the ground: regulators around the world have grounded all fifty Dreamliners after battery fires in two planes, and Ray LaHood, the Transportation Secretary, has declared that the Dreamliner will not fly again in the U.S. until regulators are “a thousand per cent sure” of its safety. And this is just the latest in a long series of Dreamliner problems, which delayed the plane’s début for more than three years and cost Boeing billions of dollars in cost overruns. The Dreamliner was supposed to become famous for its revolutionary design. Instead, it’s become an object lesson in how not to build an airplane.