“Advanced alien civilizations definitely exist somewhere in the universe”
Agree
- Billions of planets in habitable zones
- Universe is 13.8 billion years old
- Life emerged quickly on Earth
- Math makes it nearly impossible we're alone
- Recent exoplanet discoveries are promising
Disagree
- Zero evidence despite decades searching
- Great Filter might doom intelligent life
- Maybe life requires impossibly rare conditions
- Fermi Paradox suggests we're actually alone
- Silence of universe is deafening
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