A group called Braingate has developed technology that allows someone to type on a screen by just thinking about writing the words they want to type. Controlling a computer with just your mind is definitely amazing, but the applications it can be used for are even more amazing.
The test subject they used is a great example. After having two tiny square brain implants inserted into his head, a 65-year-old paralyzed man was able to type on the screen at "about the same speed a person of that age can type on a smartphone," according to the researchers. In this case, that meant around 90 characters per minute with 94.1 percent accuracy, which was more than twice the old speed record for typing with just your mind.
This is really cool stuff and could help a lot of physically impaired people communicate and use the internet, but it's not quite ready for widespread use; Braingate says they need more clinical trials to demonstrate the "longevity, safety, and efficacy" of the implants first.
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