Tachyonic antitelephone

The tachyonic antitelephone is a hypothetical concept in theoretical physics that involves the use of hypothetical particles called tachyons, which are theorized to travel faster than the speed of light. The concept was introduced by physicists to explore the implications of faster-than-light communication. In essence, the tachyonic antitelephone is a thought experiment that suggests a method of communication using tachyons.