Is intelligent alien life common in the universe?

Welcome to the debate arena! Today's topic: "Is intelligent alien life common in the universe?". Your opponent's style: Carl Sagan

no

You're wrong. Life isn't some cosmic rarity—it's probably everywhere. Consider this: we've found organic molecules in meteorites, amino acids forming in lab conditions mimicking early Earth, and extremophiles thriving in conditions we thought impossible. The universe contains more stars than grains of sand on all Earth's beaches. Even if life emerges in one in a trillion worlds, that's still billions of inhabited planets. The real question isn't whether intelligent life exists elsewhere—it's why we haven't detected it yet. That's Fermi's paradox, and it's far more interesting than assuming we're alone in an incomprehensibly vast cosmos.