A more thorough explanation:

A notice to all the world is a public announcement that is made regarding a lawsuit. This announcement is usually made to people who are within the jurisdiction where the lawsuit is pending. The purpose of this notice is to inform the public about the lawsuit and to give them an opportunity to participate in the proceedings if they wish to do so.

Here are some examples of situations where a notice to all the world might be issued:

• A company is being sued for environmental damage caused by its operations. The notice to all the world would be issued to inform people who live in the affected area about the lawsuit and to give them an opportunity to provide evidence or testimony.
• A class action lawsuit is being filed against a pharmaceutical company for a drug that has caused harm to patients. The notice to all the world would be issued to inform anyone who has taken the drug about the lawsuit and to give them an opportunity to join the lawsuit if they wish to do so.
• A city is being sued for discrimination in its hiring practices. The notice to all the world would be issued to inform anyone who has applied for a job with the city about the lawsuit and to give them an opportunity to provide evidence or testimony.

These examples illustrate how a notice to all the world is used to inform the public about a lawsuit and to give them an opportunity to participate in the proceedings if they wish to do so. By issuing this notice, the court ensures that everyone who may be affected by the lawsuit has a chance to have their voice heard.