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- Warehouse work is physically taxing, with employees moving thousands of pounds per day.
- As Walmart automates distribution centers, new robots and forklifts are lightening the load.
- CFO John David Rainey says Walmart's labor-saving automation may add a decade to workers' careers.
Warehouse work is one of the most physically taxing jobs in the digital age.
That intensity has been well documented at Amazon, and now increasingly at Walmart as the world's largest retailer beefs up its e-commerce operation.