Many Americans got their first glimpse behind the machine learning curtain when details of Amazon’s “Just Walk Out” technology went public. Instead of pure technology tallying up customers’ purchases and charging them when they left the store, the sales were manually checked by about 1,000 real people working in India.

But these workers were the human-half of what most AI really is — a collaboration between reinforcement learning and human intelligence. 

The human element tends to be ignored in discussions of AI safety, which is a little disturbing given how much of an impact AI will likely have on our job markets and ultimately our individual lives. This is where…

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