The term "open borders" refers to a policy or idea that advocates for the removal of any restrictions, limitations or controls on immigration between countries. This means that anyone who wishes to enter another country would be allowed to do so without having to go through any formal process such as applying for a visa or passing a background check. The concept is based on the belief that people should have the freedom to move and live wherever they choose, without being hindered by government-imposed barriers. Open borders advocates argue that it would increase global economic growth, improve human rights, and promote cultural exchange. However, critics of open borders argue that it could lead to increased crime rates, strain on resources such as healthcare and education, and threaten national security.