Traditional communication methods, such as radio waves, are hindered by the vast distances between stars, making real-time communication virtually impossible. The speed of light, which is the maximum speed at which any object or information can travel, becomes a significant constraint. For instance, a message sent from Earth to a spacecraft near Proxima Centauri, the closest star to the Sun, would take approximately 4.24 years to arrive, even if transmitted at the speed of light.