The document discusses three solutions to overpopulation: 1) Relocation and exploration, which involves finding new places for humans to live to gain more resources and space; 2) Management of birth rates, such as employing birth limits like a one-child policy to control population growth; 3) Decimation of the human population by selecting and killing a few billion people. Each solution is described as being either passive, assertive, or aggressive respectively. The document asks what solution the reader would support to address overpopulation issues expected to worsen in the coming decades as world population increases by another billion people.