21 People Who Thought They Were Smart But Were Totally Incorrect

They say that being smart means knowing how dumb you are. Unfortunately, plenty of dumb people have no clue, and like to go around confidently spewing their misinformation for the world to hear. And they have no clue they're wrong. 

Social media gives these loonies a place to spout their feelings, and come in contact with like minded incorrect people. Too bad that just makes them even more confident.