Do you watch TV? Listen to radio? Is it possible an ad campaign started by using these mediums with subliminal messages and then popped the ads, making you think you had the original thoughts first? I feel it is easier to put together this type of ad campaign that you may realize. But no, I don't think they can read your mind. I know they would like to but every individual's synapses developed differently. Perhaps some similarly to development but at different times and thus the pathways will be somewhat diverse.