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The Demon in the Machine: How Hidden Webs of Information Are Solving the Mystery of Life

Book by Paul C.W. Davies · 2 quotes · Causation, Correlation, Flow Of Time

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The Demon in the Machine: How Hidden Webs of Information Are Solving the Mystery of Life Quotes

“Network theory confirms the view that information can take on 'a life of its own'. In the yeast network my colleagues found that 40 per cent of node pairs that are correlated via information transfer are not in fact physically connected; there is no direct chemical interaction. Conversely, about 35 per cent of node pairs transfer no information between them even though they are causally connected via a 'chemical wire' (edge). Patterns of information traversing the system may appear to be flowing down the 'wires' (along the edges of the graph) even when they are not. For some reason, 'correlation without causation' seems to be amplified in the biological case relative to random networks.”

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“To conclude: time doesn’t pass. (I hope the reader is now convinced!) Well, what does pass, then? I shall argue that it is the conscious awareness of the fleeting self that changes from moment to moment. The misconception that time flows or passes can be traced back to the tacit assumption of a conserved self. It is natural for people to think that ‘they’ endure from moment to moment while the world changes because ‘time flows’. But as Alice remarked in Lewis Carroll’s story, ‘It’s no use going back to yesterday, because I was a different person then.’ Alice was right: ‘you’ are not the same today as you were yesterday. To be sure, there is a very strong correlation – a lot of mutual information, to get technical about it – between today’s you and yesterday’s you – a thread of information made up of memories and beliefs and desires and attitudes and other things that usually change only slowly, creating an impression of continuity. But continuity is not conservation. There are future yous correlated with (that is, observing) future states of the world, and past yous correlated with (observing) past states of the world. At each moment, the you appropriate to that world-state interprets the correlation with that state as ‘now’. It is indeed ‘now’ for ‘that you’ at ‘that time’. That’s all! The flow-of-time phenomenon reveals ‘the self’ as a slowly evolving complex pattern of stored information that can be accessed at later times and provide an informational template against which fresh perceptions can be matched. The illusion of temporal flow stems from the inevitable slight mismatches.”

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Book:The Demon in the Machine: How Hidden Webs of Information Are Solving the Mystery of Life
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