character: Enrico Fermi
topic: Fermi Paradox
grade: 12
subject: Mathematics
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character: Stephen Hawking
topic: Theoretical implications of life in the universe
grade: 12
subject: Mathematics
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character: Carl Sagan
topic: Search for extraterrestrial intelligence
grade: 12
subject: Mathematics
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character: Niels Bohr
topic: Quantum theory and implications for life
grade: 12
subject: Mathematics
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