“Heart-rate variability” has been decades in the making
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It could also be useful in finding life on other planets
Rich and poor consumers are seeing their spending patterns converge
AI is prompting investors to reassess every business model under the sun
A handpicked article read aloud from the latest issue of The Economist
Continuous growth can make economies fat and slow
Eventually the improbable, the implausible or the once-impossible will become inevitable
