The Algorithms That Make Instacart Roll

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Photos, top and bottom: Michael Loccisano/Getty Images; middle: Cheney Orr/Reuters In These COVID Times: Instacart orders surged during the pandemic, with the company adding some 300,000 shoppers and an option for customers to avoid human contact: “Leave at My Door Delivery.” It’s Sunday morning, and, after your socially distanced morning…
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Quantum Computing Makes Inroads Towards Pharma

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Theoretically, quantum computers theoretically can prove more powerful than any supercomputer. And recent moves from computer giants such as Google and pharmaceutical titans such as Roche now suggest drug discovery might prove to be quantum computing’s first killer app. Whereas classical computers switch transistors either on or off to symbolize data as…
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Could "Topological Materials" Be A New Medium for Ultra-Fast Electronics?

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Illustration: Ames Laboratory/U.S. Department of Energy Schematic of light-induced properties of the “topological material” zirconium pentatelluride (ZrTe 5) Potential future transistors that can exceed Moore’s law may rely on exotic materials called “topological matter” in which electricity flows across surfaces only, with virtually no dissipation of energy. And now new findings…
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AI Teaches Itself Diplomacy

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Now that DeepMind has taught AI to master the game of Go—and furthered its advantage in chess—they’ve turned their attention to another board game: Diplomacy. Unlike Go, it is seven-player, it requires a combination of competition and cooperation, and on each turn players make moves simultaneously, so they must reason about what others…
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