Imagine an alien coming down Brain Plus IQ

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Imagine an alien coming down Brain Plus IQ to Earth and trying to figure out what the most important part of a car is. Is it the wheels, the spark plugs, the axle, what? Obviously, all these parts work together to make the car drive and none of them work without the others. You don't need to understand how an internal combustion engine works in order to drive your car from point A to point   http://jackedmuscleextremeadvice.com/brain-plus-iq/