Not such a big deal.
Unless - that information is used against a person. Either through 'targeted advertising' or though government eavesdropping or maybe it's 'thought-dropping'.
It will open up a new genration of computers.it will be a good thing for both security and HACKERS.if this tech picks up.it will be a war between people.SITTING AT HOME.GEEKS TRYING TO THINK OUT WAY TO HACK.ANOTHER SET OF PEOPLE TRYING TO STOP THEM.