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A new theory sheds light on the emergence of life’s complexity

nautil.us

1–10 of 36 posts

Re: A new theory sheds light on the emergence of life’s complexity

#6
Heard this before.

What do y'all think of this twist on "atheism vs intelligent design" debate? A wild swing from "life is improbable" to "life is almost certain".

I think there's some major flaw in this reasoning. Otherwise, how do you explain Drake's equation? How come every planet we have seen so far doesn't have any form of complex life on it so far as we know?

Here's what I think the flaw is: the more a planet heats up, the more it can radiate into space as infrared radiation. Obviously an equilibrium can be achieved without a constant increase in complexity.

Re: A new theory sheds light on the emergence of life’s complexity

#7
This theory reminds me a lot of the folding funnel. It used to be thought of as a paradox that a protein could fold in mere minutes if it needed to explore each possible configuration before arranging into its "correct" configuration. This paradox was solved with the theory of the folding funnel (https://en.wikipedia.org/wiki/Folding_funnel) which states that the potential energy surface is not flat, but rather it is 3 dimensional funnel with points where it is practically impossible to go backwards. The nascent protein does not explore the entire potential energy surface, instead it just folds into relatively few transition states before assuming its final form.

Re: A new theory sheds light on the emergence of life’s complexity

#8
The next step will be the realization that asymmetry of direction towards self organization on all levels, coded as energy consumption/dissipation efficiency, is a built in property of our reality, and life and counsciousness as we understand then are not random accidents.

Quarks -> protons/neutrons, nucleus+electrons -> atoms, atoms -> molecules, molecules -> proteins, proteins -> cells, cells -> organisms, organisms -> ecosystems, stars -> galaxies, galaxies -> clusters, etc.

Re: A new theory sheds light on the emergence of life’s complexity

#10
post #6

Heard this before. What do y'all think of this twist on "atheism vs intelligent design" debate? A wild swing from "life is improbable" to "life is almost certain". I think there's some major flaw in this reasoning. Otherwise, how do you explain Drake's equation? How come every planet we have seen so far doesn't have any form of complex life on it so far as we know? Here's what I think the flaw is: the more a planet h…

I don't think we have enough data to be sceptical about the presence of certainty of life on other planets. We've only found ~3,700 planets other than Earth - and only ~20 of those are near the size of Earth[0]. We couldn't even see those planets directly until very recently, so it doesn't seem certain (to me, a layman) that we could even identify Earth as having life, at the same resolutions. That's assuming that we would recognize life, if we saw it. (Side note: Children of Men is a book I recently read that touches on this topic. ) I'll admit that I am very optimistic about the presence of advanced life on planets other than Earth, so this is definitely influencing my outlook.

[0] https://www.google.com/amp/s/arstechnica.com/science/2016/05...

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