As American citizens, and in many other countries, we are told that we are free. In fact, we have laws that guarantee our freedoms. At the very same time, we are told what we can and cannot do. We are told what we can and cannot eat or drink. We are told what we are allowed to buy or sell. Are we truly free? Please consider the following thought experiment from Robert Nozick.
You are the accidental by-product of nature, a result of matter plus time plus chance. There is no reason for your existence. All that awaits you is death. Anything that exists does so merely by chance and exists purely without reason, meaning, or cause. This is based on the idea that a perfectly balanced universe has existed in perpetuity for all eternity without cause. This is not far from a religious belief that a perfectly balanced being (God) has existed in perpetuity for all eternity without cause.