Elon Musk unveils plan to build mind-reading implants: 'The monkey is out of the bag'

• Neuralink startup plans to use small 'threads' to detect neuron activity
• Musk: tests show 'monkey can control computer with its brain'

Elon Musk's secretive "brain-machine interface" startup, Neuralink, stepped out of the shadows on Tuesday evening, revealing its progress in creating a wireless implantable device that can - theoretically - read your mind.

At an event at the California Academy of Sciences in San Francisco, Musk touted the startup's achievements since he founded it in 2017 with the goal of staving off what he considers to be an "existential threat": artificial intelligence (AI) surpassing human intelligence.