The people were one piece coveralls. The coveralls have different colors, and each color signifies a persons function and rank. As a person progresses in their duties they are given another color. Later after the Phobos experiment in silent communication ends, the pyramid is converted and used for farming purposes. Computers monitor the ratio of various nutrients in the water, and people double check the computers results.
Transportation systems become almost noiseless and very efficient.
Nuclear power is used extensively. Sophisticated computers are integrated in to every household and are used in everyday life. Advanced education is emphasized and readily available. Experiments in weather control are becoming more successful. The average life span increases to 110 years old.