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Where are all the intelligent civilizations in the universe? The Fermi Paradox leads us to reflect on the Great Silence that surrounds us: if there are so many stars and planets, why don't we find signs of other forms of life? In this video, we will explore this intriguing paradox and discuss the various explanations, solutions, and hypotheses that have emerged over the years. We will discuss everything from strange theories to more plausible ones, considering some of the approximately 100 proposed solutions. Additionally, we will address the Kardashev Scale, created by Nicolai Kardashev, which measures the advancement of civilizations based on their ability to consume and control energy. We will understand the three types of civilizations: Type I, capable of accessing the energy of their planet; Type II, which uses the energy of its star; and Type III, which harnesses the energy of its galaxy. Let's investigate whether megastructures from these civilizations could be detected and what the Great Silence reveals about the search for intelligent life. Prepare yourself for a fascinating journey that combines the mysteries of the cosmos with the complexities of human civilization and its ambitions! #sergiosacani #knowledge #curiosities #astronomy #cosmology #science #physics #space