One detail that best supports the idea that someday man might travel to another galaxy is the rapid advancements in space exploration technology and research. For example, the development of advanced propulsion systems, such as ion thrusters and nuclear propulsion, could potentially enable spacecraft to travel much faster and farther than ever before. Additionally, the discovery of potentially habitable exoplanets and the possibility of finding evidence of extraterrestrial life could also serve as motivating factors for humans to eventually travel to other galaxies.
