Part 2/12:
The universe is a colossal expanse housing millions of galaxies, innumerable stars, and potentially countless planets that could harbor life. Despite this vastness, Earth remains the only confirmed home of living beings. This singularity begs the question: Why haven't we discovered life elsewhere in the universe? Humanity has only existed for a mere 200,000 years, during which time we have embarked on journeys to other celestial bodies. This brief history raises the possibility that many planets may have birthed life much earlier than Earth, potentially leading to far more advanced civilizations than our own. Yet, as we peer into the starry abyss, we find ourselves alone. The enigma of our solitude is explored through a thought-provoking theory known as "The Great Filter," which we will delve into today.