Desperately Seeking Symmetry

Key takeaways

Human connection can lead to profound emotional and neurological experiences that resonate deeply within us.
Our self-perception, both in mirrors and physically, can reveal significant insights about our identities and societal interactions.
The chirality of life demonstrates how fundamental asymmetries govern the chemical laws of our existence.
The universe's matter-antimatter balance continues to be an area of intrigue and mystery in modern physics.

Summary

Setting the Stage: A Journey into Symmetry

Hosts Jad Abumrad and Robert Krulwich introduce the theme of the episode, exploring the concept of symmetry in various realms. They utilize an ancient parable from Plato via Aristophanes to discuss how people were traditionally believed to be born as whole beings, their souls entwined, reflecting the desire for completeness in love and relationships.

The Neuroscience of Connection

The discussion transitions to the science behind human interactions, featuring neuroscientist Lauren Sobel from Princeton. They investigate what occurs in our brains when we experience a 'click' with someone, leading to a more profound understanding of intimacy and connection through brain scans that illustrate how we can mirror each other's emotional states.

Mirror Mysteries and Reflections of Self

The hosts delve into the psychological complexities of how we perceive ourselves through mirrors, featuring the perspectives of individuals like John Walter, whose hair part anecdote reveals the psychological dissonance between our mirrored self and actual self. This segment emphasizes the deeper connection to identity and perception.

Chirality: The Asymmetry of Life

Neil deGrasse Tyson explains chirality in the context of molecular life, emphasizing that all life is built with left-handed molecules. The conversation shifts to the implications of symmetry and asymmetry in the universe, leading to discussions about how life has chosen one form over another, ultimately impacting everything from chemistry to personal identities.

The Big Bang and the Quest for Matter

Wrapping up, the hosts engage with Tyson on the creation of matter versus antimatter during the Big Bang. They explore the surprising asymmetry that allows for the existence of everything we see in the universe, illustrating both the richness and mysterious nature of existence.

Show notes

This hour of Radiolab, former co-hosts Jad and Robert set out in search of order and balance in the world around us, and ask how symmetry shapes our very existence -- from the origins of the universe, to what we see when we look in the mirror.

Along the way, we look for love in ancient Greece, head to modern-day Princeton to peer inside our brains, and turn up an unlikely headline from the Oval Office circa 1979.

EPISODE CITATIONS:

Videos -

Back in the day, when we first aired this episode, the film collective Everynone, filmmakers Will Hoffman, Daniel Mercadante and Julius Metoyer III were inspired with our yearning for balance, and aimed to visually reveal how beautiful imperfect matches can be.

Radiolab Presents: Symmetry (https://youtu.be/zEQskIsHKT8)

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