It's possible to input data into the brain, and it may be possible to download information into a person's memory.
Their are practical advantages, this would allow people to learn everything they need to know about a subject of interest in a matter of minutes. However this technology would be highly dangerous in the wrong hands. If refined enough it could be used as a form of mind control, especially if you could selectively erase existing memories (otherwise it would be possible to train someone to recognize implanted memories).
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The improbable goal: Fear nothing, hate nothing, and let nothing anger you.