8 December 2014

"Capable of...conscious wandering"

[The product of] a mind no longer tethered solely to the here and now, but capable of a uniquely abstract form of conscious 'wandering' 
— David Edelman on patterns on a shell thought to have been etched by Homo erectus about 500,000 years ago.

Image by Wim Lustenhouwer/VU University Amsterdam, via CBC

6 December 2014

Green thought

There is a kind of brain chauvinism. We think that a brain is something that is absolutely needed to have intelligence. Not so... 
[Darwin] was right...If we need to find an integrative processing part of the plant, we need to look at the roots.
Stefano Mancuso quoted in Root intelligence: Plants can think, feel and learn, an article by Anil Ananthaswamy who also quotes Michael Marder:
Our task is to think about... concepts of attention, consciousness and intelligence in a way that becomes somehow decoupled from the figure of the human. I want [us] to rethink the concept of intelligence in such a way that human intelligence, plant intelligence and animal intelligence are different sub-species of [a] broader concept.
See also these posts from the blog of Barely Imagined Beings, The Intelligent Plant by Michael Pollan and The Mental Life of Plants and Worms... by Oliver Sacks


Image: MoonShadow-DarkRaven

5 December 2014

Invisible Island


Invisible Island. 54°1′S 37°19′W.  A small, tussock-covered island lying in the Bay of Isles, South Georgia.

Image: Lichten Hansen

The most wondrous thing

What is the most wondrous thing? 
The most wondrous thing is that although everyday innumerable humans die, a man still thinks he is immortal.
— from The Book of the Forest
You act like mortals in all that you fear, and like immortals in all that you desire.
— from On the Shortness of Life by Seneca.
Between prison and the place of execution does any man sleep? But we sleep all the way. From the womb to the grave, we are never thoroughly awake.
— from Sermons of John Donne, quoted by Jonathan Glover

Image The Ninth Wave by Cai Guo-Qiang. Power Station of Art via ArtNet

4 December 2014

All possible paths simultaneously

Below you lies just one of the trillions of photosynthetic machines that manufacture the world's biomass [some 16,000 tonnes every second]. From your vantage point you can see that...although there are plenty of billiard-ball like turbulent molecular collisions going on, there is also an impressive degree of order. The membranous surfaces of the thylakoid is studded with craggy green islands forested with tree-like structures terminating in antennae-like pentagonal plates. These...are light harvesting molecules call chromophores, of which chlorophyl is the most famous example.
from Life on the Edge: the Coming Age of Quantum Biology by Jim Al-Khalili and Johnjoe McFadden (2014)
The very best photovoltaic cells...convert sunlight to electrical energy with an efficiency of around 35%; for more affordable cells the figure is closer to 20%. Plants accomplish the same process with about 90% efficiency during the first stage of photosynthesis. 
Efficiently converting light into electricity requires preserving the energy of an exciton [an electron-ion pair] as it travels deep within reaction centre of the leaf [and] the key to [this] lies in way it travels to the reaction centre. Researchers discovered to their great surprise in 2007 that plants use a [trick] from the realm of quantum physics to help excitons find their way. Rather than bumping randomly through a forest of chlorophyll molecules until they happen to reach their destination...each exciton spreads out over all possible paths simultaneously, and then funnels down through the most efficient route.
from How plants exploit sunlight so efficiently, The Economist.

Image from synechocystis.asu.edu

2 December 2014

"Every particle of dust breathes forth its joy"


In a reflection on William Blake, Philip Pullman writes:
Is [the world] twofold, consisting of matter and spirit, or is it all one thing? Is dualism wrong, and if so, how do we account for consciousness?…Blake recounts how he says to a fairy “Tell me, what is the material world, and is it dead?” In response the fairy promises to “shew you all alive / The world, where every particle of dust breathes forth its joy.” This is close to the philosophical position known as panpsychism, or the belief that everything is conscious, which has been argued back and forth for thousands of years. Unless we deny that consciousness exists at all, it seems that we have to believe either in a thing called “spirit” that does the consciousness, or that consciousness somehow emerges when matter reaches the sort of complexity we find in the human brain. Another possibility, which is what Blake’s fairy is describing here, is that matter is conscious itself. 
But why shouldn’t it be? Why shouldn’t consciousness be a normal property of matter, like mass? Let every particle of dust breathe forth its joy. I don’t argue this, I perceive it.
Whatever the larger truth [1], it is a capability of the human mind to perceive and feel the world as if it were conscious. The sensation is well conveyed by Barry Lopez:
One must wait for the moment when the thing — the hill, the tarn, the lunette, the kiss tank, the caliche flat, the bajada — ceases to be a thing and become something that knows we are there. [2]
The astounding properties of the brain that make such a state of mind possible should be both studied and celebrated. The comparison of the diversity and multiplicity of a single human brain to the entire Amazon rainforest made by neuroscientist Christoph Koch may be a good one, but it does not account for the brain's interconnectedness (facilitating about one hundred trillion operations per second) nor its highly dynamic nature and the effectively infinite number of unique networks that are possible. [3]

It is sometimes pointed out that on an uninhabited planet there would continue to be sun and rain, stars, and snow, but there would be no rainbows and no horizon. [4] Perhaps consciousness is a little like a rainbow or an horizon: an interaction of mind and place.



P.S. a few weeks after I wrote this post I took part in a roundtable on Blake with Philip Pullman and Iain Sinclair.  Notes for my introductory remarks can be found here.


Notes

[1]  People clearly do experience mental states besides logical reasoning (Blake's "single vision and Newton's sleep") — notably, ecstatic or mystical bliss, poetic inspiration, and complex association and ambiguity so well described by Pullman in his piece. But whether consciousness could actually be a normal property of matter — as distinct from a normal property of how some humans sometimes perceive matter —  remains an open question. Christoph Koch (with reference to Leibniz?) is among those who think that it could.  The philosopher Evan Thompson thinks it is unlikely that consciousness exists independently of a brain.

[2] This is, presumably, from Home Ground: Language for an American Landscape (2013) edited by Barry Lopez and Debra Gwartney. The passage is quoted in Landmarks by Robert Macfarlane (forthcoming), which also cites, inter alia, Wisdom Sits in Places by Keith Basso (1996). In the Zen tradition, Dōgen said that "fences, walls, tiles, and pebbles" are also "mind" (心,shin).  Maurice Merleau-Ponty records the painter Andre Marchand as saying:
In a forest, I have felt many times over that it was not I who looked at the forest. Some days I felt that the trees were looking at me, were speaking to me.... I was there listening.... I think that the painter must be penetrated by the universe and not want to penetrate it.

[3] Henry Marsh (2014) puts it something like this: To understand the mind as the product of electrochemistry is not to downgrade the soul but to upgrade our sense of matter and better appreciate how little we understand about it.  Lee Smolin (2013) writes:
The problem of consciousness is an aspect of the question of what the world really is. We don’t know what a rock is, or an atom, or an electron. We can only observe how they interact with other things and thereby describe their relational properties.

[4] see Wonder, the Rainbow and the Aesthetics of Rare Experience by Philip Fisher (1999)

Image: Douglas Griffin

1 December 2014

The tune without the words


Image of Hen Harrier via Wild Scotland

Updated 13 and 21 January 2015: Patrick Barkham on England's missing hen harriers and Bowland Beth, a poem by David Harsent (the title of this post is a poem by Emily Dickinson).