A new study led by Chris Doughty, a professor of ecoinformatics at Northern Arizona University, suggests that the chances of finding a nearby advanced alien civilization are relatively low. Published in the International Journal of Astrobiology, the research challenges the idea that the age of a planet is the main factor in determining whether complex life can develop. Instead, the study argues that the availability of cumulative plant energy—essentially the total energy captured by plants over time—plays a more significant role in the evolution of life on potentially habitable exoplanets. The researchers explain that while some of Earth's neighboring planets are much older, they may not have had the right conditions for photosynthesis to flourish. This would slow down the development of life, even over billions of years. As a result, many Earth-like planets might still be at the microbial stage of evolution, where only simple life forms exist. The study implies that the absence of advanced alien civilizations in our vicinity might be due to the slow evolutionary progress on most of these planets. The research analyzed 29 nearby exoplanets that could potentially support liquid water, including TRAPPIST-1e, located 40 light-years from Earth. Despite being several billion years older than Earth, TRAPPIST-1e has accumulated only 21% of Earth's carbon, suggesting that life on this planet may still be in its microbial phase. Similar calculations for other exoplanets identified only two planets, GJ 1061c and K2-3d, where life might have evolved more rapidly than on Earth. Three other planets could be at a stage comparable to Earth's Mesozoic era, the time of the dinosaurs. The study highlights that the atmosphere of these exoplanets would strongly influence climate, photosynthesis, and the evolution of life. Future observations using the James Webb Space Telescope may offer more precise data to improve these estimates. Additionally, the research suggests that if an alien civilization exists in our neighborhood, it may have evolved in environments similar to Earth's deserts or temperate regions, rather than in lush rainforests. This aligns with the idea that early humans likely evolved in savanna woodlands, where resources were limited and survival required adaptation.