Could this technology help us communicate with hypothetical advanced civilizations elsewhere? The search for extraterrestrial intelligence (SETI) has been around as long as attempts to message extraterrestrial intelligence (METI), the aim of which is to find and communicate with extraterrestrial civilizations. But after 40 years of serious searching, we have not found such extraterrestrial intelligence, and our messages remain unanswered. We cannot conclude that we are alone in the galaxy, given its vastness and our nascent search efforts. It may be time to radically rethink our approach, however.