What is the world population?
According to the United Nations, the world population as of October 2021 is estimated at 7.9 billion people. It is important to note that the world population is dynamic, and constantly changes due to factors such as birth rates, death rates, and migration.
Complete the following task based on the instruction and optional input provided.### Instruction:
What is the world population?

### Output:
According to the United Nations, the world population as of October 2021 is estimated at 7.9 billion people. It is important to note that the world population is dynamic, and constantly changes due to factors such as birth rates, death rates, and migration.