Elon Musk: Say 'Sweet Dreams,' Humanity

Elon Musk has once again warned about the

dangers of unchecked artificial intelligence, this time in response to a viral video of a robot doing amazing acrobatic feats.
Twitter user Alex Medina, a designer for Vox Media, posted a clip of a Boston Dynamics humanoid robot called Atlas doing a backflip with the short caption: "we dead."
In reply, Musk wrote, "This is nothing. In a few years, that bot will move so fast you'll need a strobe light to see it. Sweet dreams."