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Could science abolish death? — with Ariel Zeleznikow-Johnston

Using the latest brain preservation techniques, could we ever abolish death? And if so, should we?

Watch the Q&A here (exclusively for our Science Supporters): https://youtu.be/iSIIDJS2a2U
Buy Ariel’s book here: https://geni.us/xvi1Ivf.

This lecture was recorded at the Ri on 2 December 2024.

Just as surgeons once believed pain was good for their patients, some argue today that death brings meaning to life. But given humans rarely live beyond a century – even while certain whales can thrive for over two hundred years – it’s hard not to see our biological limits as profoundly unfair.

Yet, with ever-advancing science, will the ends of our lives always loom so close? For from ventilators to brain implants, modern medicine has been blurring what it means to die. In a lucid synthesis of current neuroscientific thinking, Ariel Zeleznikow-Johnston explains that death is no longer the loss of heartbeat or breath, but of personal identity – that the core of our identities is our minds, and that our minds are encoded in the structure of our brains. On this basis, he explores how recently invented brain preservation techniques may offer us all the chance of preserving our minds to enable our future revival, alongside the ethical implications this technology could create.

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Entangling two physically separate resonators enables a major advance in the science of quantum sound

Entanglement—linking distant particles or groups of particles so that one cannot be described without the other—is at the core of the quantum revolution changing the face of modern technology.

While entanglement has been demonstrated in very small particles, new research from the lab of University of Chicago Pritzker School of Molecular Engineering (UChicago PME) Prof. Andrew Cleland is thinking big, demonstrating high-fidelity entanglement between two acoustic wave resonators.

The paper is published in Nature Communications.

Science Is Now Metaphysics

Main episode with Matthew Segall: https://www.youtube.com/watch?v=DeTm4fSXpbM

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Invisibility: The Science of How Not To Be Seen with Neil deGrasse Tyson & Greg Gbur

Can you make something invisible? Neil deGrasse Tyson and comedian Negin Farsad discover the science behind invisibility with professor of physics and optical science, Greg Gbur. What would real-life invisibility look like?

Can you be invisible in other parts of the magnetic spectrum? We discuss transparency versus invisibility and how metamaterials help us interact with different wavelengths. What does light have to do in order to make something invisible? We break down invisibility cloaks and other invisibility devices from fiction.

Could you make yourself invisible to all parts of the electromagnetic spectrum? We explore the main challenges in achieving invisibility and the difference between passive and active invisibility. How useful of a power would it be?

We discuss the interaction between waves and matter. What makes some waves reflect off matter and others pass through? Learn about x rays and how they work, plus, an at-home invisibility trick using prisms. Finally, could you make someone invisible to time?

Thanks to our PatronsDan, Nick Taylor, Beth Fitzpatrick, Jim, Laura Gilsman, and Gregory Greenwood for supporting us this week.

NOTE: StarTalk+ Patrons can watch or listen to this entire episode commercial-free.

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