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[The Ship of Theseus: Understanding the Hidden Brain and Our Evolving Identity]-[How do I know what my future self wants? (w/ Shankar Vedantam)]

How to Be a Better Human · B2 · 2023-09-25

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📋 Summary

The Paradox of the Evolving Self: Insights from Shankar Vedantam

In a thought-provoking episode of How to Be a Better Human, host Chris Duffy sits down with Shankar Vedantam, the journalist and host of the Hidden Brain podcast, to explore the elusive nature of the human identity. The conversation centers on a fundamental paradox: while we often feel like a singular, continuous person, scientific and psychological evidence suggests that we are in a constant state of flux, both biologically and psychologically.

The Ship of Theseus and the Plastic Brain

Vedantam introduces the "Ship of Theseus" thought experiment to illustrate this internal transformation. If you replace every plank of a ship over time, is it still the same vessel? Similarly, while our cells are constantly being swapped out, the "organization" of our bodies remains. However, at a psychological level, Vedantam argues that because of the "famous plasticity of the brain," we are "constantly becoming a new person." This challenges the illusion that the 12-year-old, 52-year-old, and 82-year-old versions of ourselves are identical.

The Autopilot of the Hidden Brain

Much of our mental processing happens in what Vedantam calls the "hidden brain"—a catch-all term for the neurological and psychological phenomena that occur outside our conscious awareness. He explains that this is an evolutionary necessity: our brains evolved to solve problems of "survival, reproduction, and everyday thriving," not to contemplate their own internal mechanisms.

While this "autopilot" function allows us to perform complex tasks like reading or riding a bike without conscious effort, it becomes a liability when we "outsource" it to critical domains, such as making judgments about other people. Vedantam notes that in the modern world, "it's more important to be right than it is to be quick," yet our Stone Age brains are still hardwired to make snap, intuitive judgments that can lead to bias and error.

Pathfinding vs. Navigation

One of the most profound takeaways from the discussion is the distinction between navigation and pathfinding. Most people focus on navigation—following the established route to a predetermined goal, like the "Empire State Building." However, Vedantam suggests that we often avoid the harder question of pathfinding: "Where am I going?"

Because we cannot truly know who our future selves will be, Vedantam encourages "curiosity" as the engine for discovery. He advises listeners to be the "architect of your future self" by trying new hobbies, jobs, and environments. He suggests looking for moments where you "forget yourself"—situations where you are so engrossed in a task that you lose awareness of the self. These moments are key indicators of your true values and potential vocation.

The Gap Between Insight and Action

Even for those who understand these concepts, there remains a "vast gulf between insight and action." Vedantam admits that despite his professional expertise, he often struggles to apply his own findings in daily life, such as getting angry over trivial matters. He emphasizes that we need "guardrails"—systems and external accountability—to protect us from our own cognitive blind spots.

Extending Grace to the Future Self

Ultimately, the conversation concludes with a call for humility. We must recognize that our current desires and beliefs are not permanent. Just as we laugh at the trivial concerns of our childhood, our future selves may view our current "life-or-death" problems with bewilderment. Vedantam urges us to offer the same grace to others that we desire for ourselves, acknowledging that just as we are entitled to change, so too are the people around us. By accepting the unknowability of the future, we can move through life with greater compassion and intentionality.

🎯Key Sentences

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It's hard to put into words exactly what that feeling is.
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It's a hard thing to put into words, exactly.
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I think of myself as being a very conscious and rational and intentional person.
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I will come up with what I think is a logical and rational answer.
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Significant portions of our minds are in fact hidden from us.
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📝Key Phrases

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put into words
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jumping-off point
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on an ongoing basis
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profound consequences
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catch-all
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📖 Transcript

Ted Audio Collective.
You're listening to How to Be a Better Human.
I'm your host, Chris Duffy.
Something that I've been thinking about a lot and talking about with friends recently is this feeling that I have that I'm not the same person that I used to be, but I'm not quite sure who I'm going to become, that I'm kind of in between versions of myself.
It's hard to put into words exactly what that feeling is, but I think a lot of us have this sense that so much has happened in the broader world over the past few years.
And also internally, there's been all these changes and adaptations we've had to make, and at least for myself, I just feel like I'm not the same as I used to be.

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