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While a senior U.S. official denies the president ordered it, two U.S. officials and a Western official briefed on the matter told Reuters that the instruction to throttle Starshield service for Ukraine’s military drones originated inside the White House. Defense Department leaders separately received word that the surveillance app-era precedent of using tech infrastructure for…

Every time a computer erases a bit, it pays an energy toll that physics will not waive; IBM physicist Rolf Landauer pinned down the minimum in 1961: kT ln 2, a figure that scales with temperature and works out to about 2.9 zeptojoules at room temperature.