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#182 3D-printing inside living organisms; what ChatGPT means for human intelligence; why insects fly towards light; carbon storage in the oceans

20 April 2023

About this episode

We’ve all seen the moths gather around the kitchen light or campfire flame at night, but have you ever wondered why they’re drawn to it? Well, there are loads of theories, but the team explores a brand new one which suggests insects don’t come seeking the light, but are instead imprisoned by it.

Life finds a way. Even amid the vast swathe of plastic and junk in the Great Pacific Garbage Patch, creatures have set up home, thousands of miles from their natural habitats. Is this a reassuring sign of adaptability, or do we need to be worried?

Our cyborg future is upon us. It may be early stages, but the team finds out about a new experiment which has, for the first time, printed conductive material inside a living organism. This material may one day be used to create working circuits and implants inside the body.

The ocean is a massive carbon sink - but can we enhance its effects? The team discusses a concept called ocean alkalinisation, which aims to boost carbon storage by dumping a load of alkaline material into the sea. An experimental project is set to test the theory soon - but is it safe?

With the rise of AI large language models like GPT-4 and Bard, will we begin to see them rival human level intelligence - or will an entirely new type of intelligence emerge? As a taste of New Scientist’s special issue on the AI Revolution, we hear from Melanie Mitchell, professor of complexity at the Santa Fe Institute in New Mexico.

On the pod are Rowan Hooper, Madeleine Cuff, Michael Le Page and Alex Wilkins. To read about these subjects and much more, you can subscribe to New Scientist magazine at newscientist.com.

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