On March 21, Musk's brain-computer interface company Neuralink provided an update on their first patient with a brain implant. This quadriplegic individual is now able to play chess using only their thoughts.

The patient himself explained that he would try to move his right hand, left, right, forward, or backward, and from there imagine the cursor moving. The cursor would then move according to his thoughts.

Neuralink received FDA approval in May of last year to begin first-in-human clinical trials.

Musk has previously said that Neuralink's near-term goal is to help paralyzed people type with their minds, with the future goals of enabling paralyzed people to walk and blind people to see, and ultimately creating a "symbiosis of man and machine."

The company has now taken a significant step toward that goal.

Neuralink plans to implant their chips into over 22,000 people by 2030.

Musk has even said that he will eventually get the brain-computer interface implanted in his own head, though he hasn't given a timeframe, and he certainly won't be the first.

It's worth noting that the current version of the brain-computer interface is pretty invasive: it involves drilling a hole in the skull and then sticking a bunch of wires into the brain, avoiding blood vessels.