A reasonable proposal.

         Many people in today's modern American world practice yo-yo diets. Crash diets are common, where calorie restriction is enforced and binging usually occurs after. Not only does this put a strain on the body, it also counteracts balance. When the word diet is brought up, many people conjure up memories of weight loss and hunger pains. To think that a diet could actually reverse hunger is interesting. Many people report feeling fuller on the paleo diet than any other, not bloated or stuffed, just contently full. Of course the transition period can be a pain, depending on the extent of non-paleo foods that the person consumed before switching. A gradual transition can curb the temporary hunger that one might suffer from. A normal transition period lasts 0 to 30 days.
          The paleo diet claims to prevent all inflammatory diseases, heart disease, high blood pressure, hypertension, insomnia, diabetes, low immune system, asthma, allergies, obesity, malnourishment, bloating, and cancer. Most importantly, it's claimed to eliminate depression. I think everyone in our modern world today could use a little happiness. If this is true, the paleo diet also might be the key to world peace. 
          This brings me back to the practical side of the paleolithic diet. It is difficult for many to hop on board because of culture, access, and wealth. However, it is the oldest diet humans followed, which means it's the first. For approximately 1,750,000 years, everyone on earth ate a paleo diet. The paleo diet excludes any food that needs to be cooked, along with processed foods. The first people on earth cooked most of their food to avoid diseases, but this only enhanced the safety of the foods. Today people cook food in order to make it edible. Sadly, I know from first hand experience that my body is not designed to eat uncooked lentils and wheat.
          What may be shocking is that people still live this way today. Take the Kitavans from Papua New Guinea for example. To this day, they adhere to a strict paleo diet of yams, taro, bananas, papayas, pineapples, watermelons, fish, coconuts, seafood, and many more foods. They are reported to die mainly from viruses or old age. In the United States heart disease is the leading cause of death, followed by several other diseases that come from poor consumption choice. Despite smoking occasionally, none of the Kitavans develop heart disease.
         If it's manageable for a whole society of people to live this way, is it that far fetched to believe we can return to our roots as well?