There are many things on the planet Earth: cats, dogs, rocks, trees, water, et cetera. However, none of these things are as dumb as humans. This is because humans have negative intelligence. I have created an intelligence spectrum to show this. In the middle of the spectrum are minerals; humans are on the far left; insects are slightly to the right; and cats and dogs are on the far right. So why do humans have negative intelligence? It is because their stupid actions outweight their smart ones. They create more destructive things like cigarettes and guns than good things, such as books; they do more stupid things than intelligent things; their thoughts hurt themselves. I will now leave you with one thing to think about: why is it that people envy rich celebrities, rich celebrities think they are special, and rocks are smart enough to not give a damn?