• AlterEgo is a wearable device that reads your "silent speech".

• It allows you to communicate with a computer system by thinking what you want to say to it. 

• It picks up on neuromuscular signals triggered when you say words in your head.

• It can then reply to your thoughts using a bone conduction method that doesn't obstruct the ear.

• Their goal is to allow people to interface with a computer without interfering with the real world.

• The device does not directly read thoughts, keeping and ensuring privacy. It only reads words that are deliberately spoken silently.

• It could act as a way to help people with speech impairments, though no real research has been conducted yet.

• The device has been found to have a 90% accuracy when reading application-specific vocabulary, though the system is user-dependent and requires individual training.

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• AlterEgo is still very much in the developmental stages. It is currently being created as a university based research project. ​

• They are working on decreasing the required production cost, creating a more acceptable form factor, and reducing the training and customization required.

• Commercialization is not in the near future, so there is not a determined price yet.

• Assuming they improve the product to the point widespread use I believe the project, or at least the technology, will stick around in some capacity.

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• Website - https://www.media.mit.edu/projects/alterego/overview/