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The Trajectory

Denis Noble - Life is “Fluid” in Ways Machines Still Aren’t (Stewarding the Flame, Episode 4)

1 tim 28 min7 augusti 2026

Denis Noble argues that water isn't just biology's medium - it may be the very reason life is possible at all.

In this installment of the Stewarding the Flame series, the Oxford physiologist and founding figure of systems biology explores why a single bacterium's 20 billion water molecules make life fundamentally unpredictable by any algorithm, why the "central dogma" of molecular biology fails to explain how organisms actually develop, and why AGI may need to be built out of water rather than silicon to carry the living process forward.

This conversation explores what makes life, life; what humanity still needs to discover in order to understand the living process; and what we should do if we want the greater process of life to flourish as AGI advances.

The interview is the fourth installment of The Trajectory's newest series, Stewarding the Flame, where we explore what intelligence is and ask what "flame" life possesses that non-life does not.

This episode referred to the following other essays and resources:
-- Stewarding the Flame - How to Build an Ideal Future for Intelligence: https://danfaggella.com/stewarding
-- Ginsburg & Jablonka, The Evolution of the Sensitive Soul (MIT Press, 2019): https://mitpress.mit.edu/9780262039307/the-evolution-of-the-sensitive-soul/
-- Noble, Dance to the Tune of Life: Biological Relativity (Cambridge UP, 2016): https://www.cambridge.org/core/books/dance-to-the-tune-of-life/721483A1B5BB01E837BC8A8435E52710
-- R. Noble & D. Noble, Understanding Living Systems (Cambridge UP, 2023): https://www.amazon.com/dp/1009277367?lv=shuf&channelId=500&plpRedirect=mhFallback
-- Martin Rees – If They’re Conscious, We Should Step Aside (Worthy Successor, Episode 12): https://danfaggella.com/rees1
-- Terrence Deacon – AI Is a “Deep Fake of Intelligence” (Worthy Successor, Episode 29): https://danfaggella.com/deacon1
-- Lee Cronin – Living Process Flourishes if We Make the Present “Thick” (Stewarding the Flame, Ep 2): https://danfaggella.com/cronin1

Listen to this episode on The Trajectory Podcast: https://podcasts.apple.com/us/podcast/the-trajectory/id1739255954

Watch the full episode on YouTube: https://youtu.be/-RAOFpD6iak

See the full article from this episode: https://danfaggella.com/noble1

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About The Trajectory:

AGI and man-machine merger are going to radically expand the process of life beyond humanity -- so how can we ensure a good trajectory for future life?

From Yoshua Bengio to Nick Bostrom, from Michael Levin to Peter Singer, we discuss how to positively influence the trajectory of posthuman life with the greatest minds in AI, biology, philosophy, and policy.

Ask questions of our speakers in our live Philosophy Circle calls:
https://bit.ly/PhilosophyCircle

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