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TED Radio Hour
Doppelgangers
Feb 9, 2024
Guests include author Naomi Klein reflecting on the impact of mistaken identity, aerospace engineer Karen Willcox discussing the potential of digital twins, planetary scientist Sarah T. Stewart explaining the unique relationship between Earth and Moon, and psychologist Nancy Segal sharing insights on the similarities between unrelated twins.
50:35
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Quick takeaways
- Twin studies have revealed that genes play a significant role in shaping our behavior and traits.
- Recent research proposes a new model suggesting that the Earth and moon formed from a vast and gaseous object called a cercion, explaining the identical isotopic compositions of the Earth and moon.
Deep dives
The Influence of Genes and Environment on Twins
Twin studies have revealed that genes play a significant role in shaping our behavior and traits. Identical twins, who share all their genes, show remarkable similarities, even when raised apart. Fraternal twins, who share half their genes, are less similar. Research on twins has challenged the belief that our environment is the primary determinant of who we are and has highlighted the importance of genetic factors in our development.
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