I spent a day eating food cooked by robots in America's tech capital

Vivian Ho befriended an electronic arm and grappled with a defunct tea maker during a trip through Silicon Valley

Around the world, an industry has emerged around automating food service through robotics, raising questions about job security and mass unemployment while also prompting praise for streamlining and innovation.

In the epicenter of Silicon Valley, where innovation is exalted beyond all else, this industry has played out in various forms, from cafes, burger shops and pizza delivery to odd vending machines.