William Lawrence Sr Omnibit 6-2-15
There are 7.3 billion persons in the world.
If each of us was a grain of sand would we could all fit in an 8,000 cubic feet box which is smaller than most houses. To fit all people in one building, it would have to be 42,377,599,886 cubic feet. The height, length and width would be about 3,400 feet.