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“The human brain is home to around 86 billion neurons, nerve cells connected to one another by synapses.

Every time we want to move, feel or think, a tiny electrical impulse is generated and sent incredibly quickly from one neuron to another.

Scientists have developed devices which can detect some of those signals – either using a non-invasive cap placed on the head or wires implanted into the brain itself.

The technology – known as a brain-computer interface (BCI) – is where many millions of dollars of research funding appears to be heading at the moment.”

Learn more on Neuralink: Musk’s firm says first brain-chip patient plays online chess via BBC.

Art: The Game of Chess. Sofonisba Anguissola c. 1555
National Museum in Poznań, Poznań