The document describes plans for a future floating city called Bubble City. It was proposed to house the remaining population after sea levels rose and flooded most of the world's cities. The city would be circular in shape and made of compressed foam and air to stay afloat. It would have residential, commercial, and education sections. The center would be a green space supplying oxygen and food. The floating circular design was chosen for stability in rough waters, with glass domes to enclose the city if needed for protection.