Nvidia has been scrutinised by investors who worry about its ever-expanding web of deals with other companies.
She points out that blockchain-based tracking of a food at each point in the supply chain might be feasible for a product like South American bananas, but isn't feasible for a lasagne containing 50 ingredients from all over the world.
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After their poorest pair of tournament performances in years, Steve Borthwick’s project is inevitably under scrutiny