Fortunately, No it cannot read your thoughts but it can detect if you switched to a different one. Everytime we are not actively focusing on something our brains go into self drive mode where it either starts planning what you would do after this, or what you had planned or any other self-related thought. Different regions of our brain is responsible for attention and self-related thought processes. When you switch from one thought to another the EEG signature changes, which our device can detects.