Annapurna Labs is not a household name, but its chips play a major role in Amazon Web Services and the company’s broader AI strategy. WSJ Science of Success columnist Ben Cohen explains. Plus, Apple) is facing an existential crisis: Should it keep focusing on hardware or pour its energy into improving its software, namely Siri? WSJ senior personal tech columnist Joanna Stern describes what the two paths could look like for the iPhone-maker.
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