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Naturebang: Sea-Sponges and the Illusion of Self

Sea-Sponges and the Illusion of Self

BBC Radio 4 - Naturebang, Sea-Sponges and the Illusion of Self

Breaking down the illusion of self, with help from the humble sea sponge

Becky Ripley and Emily Knight watch the idea of the self dissolve before their eyes, thanks to the humble sea sponge.

The humble sea sponge has been around for over 500 million years. We may think of them as ‘simple’ animals, with no brain, no nerves and no organs. But they have a pretty good party trick up their fleshy sleeves. Push a sponge through a mesh, until all that remains is a cloud of cells. Pour those cells into a tank, and watch as the cells reform themselves, like the terminator, back into a sponge.

Becky Ripley and Emily Knight ask: is it the same sponge it was before?
 
In the human world, nobody is queueing up to be forced through a discombobulating mesh.  But enter the world of science fiction and there’s something that’s not far off… the teleportation machine. Would you allow yourself to be dissolved into a molecular cloud and flung through space and time? And would the ‘you’ at the other end really be the same ‘you’ that left?

Featuring Professor Sally Leys from the University of Alberta, and Philosopher Charlie Huenemann from Utah State University.

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