Hipster’s dilemma

Do I give up my tattoo or my heartbeat? Some early adopters of the Apple Watch, Apple’s hip new device, are learning that its heart monitor malfunctions if the wearer has a wrist tattoo, a problem for Apple’s “target demographic” of young, tech-saavvy people with tattoos.

Apple says its working on a patch to fix the problems. But it’s not a software patch; it’s an actual patch to cover the tattoo.

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This one will need a software patch: Boeing has alerted the FAA to a glitch that it discovered in testing software for the 787. If the airliner’s power is left on continuously for 248 days, the software shuts down the electrical system, which would lead to a loss of control of the airplane.

This is what happens when you repurpose computer code that was meant for the coffeemakers in the galley.

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Channel-surfing the vast cultural wasteland: Scarlett Johansson, who plays the svelte superhero Black Widow in “Avengers: Age of Ultron,” which opened Friday, is the host of “Saturday Night Live,” at 11:30 p.m. on NBC. Expect Johansson to wear her form-fitting costume in at least one sketch if not the opening monologue.

And expect most of the male “SNL” cast members to drop their lines and stare blankly at Johansson. It’s her superpower, after all.

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