Driverless dynamics and fiddling with fingers

small robot arm picking a tomato off a vine in a greenhouse
Why aren't robots a bigger part of our lives yet? Credit: Sompong Sripher / Getty.

The promise of robots, and of human-robot societies, seems as elusive as ever. What are the main problems, and are we any closer to solving them? And why exactly is it so difficult to create a robot that can make you a cup of tea?

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