The extended mind and the problem of consciousness

How the brain produces the feeling of subjective experience (i.e., what is it like to be a bird or dog or whatever) has been labeled as ‘the hard problem’ of consciousness. Science journaloist Michael Hanlon writes that claims to be making progress on solving this using the latest developments in neuroscience, computation, and evolutionary science have proved to be premature.

For long periods, it is as if science gives up on the subject in disgust. But the hard problem is back in the news, and a growing number of scientists believe that they have consciousness, if not licked, then at least in their sights.

Despite such obstacles, the idea is taking root that consciousness isn’t really mysterious at all; complicated, yes, and far from fully understood, but in the end just another biological process that, with a bit more prodding and poking, will soon go the way of DNA, evolution, the circulation of blood, and the biochemistry of photosynthesis.

Committed materialists believe that consciousness arises as the result of purely physical processes — neurones and synapses and so forth. But there are further divisions within this camp.

Nearly a quarter of a century ago, Daniel Dennett wrote that: ‘Human consciousness is just about the last surviving mystery.’ A few years later, Chalmers added: ‘[It] may be the largest outstanding obstacle in our quest for a scientific understanding of the universe.’ They were right then and, despite the tremendous scientific advances since, they are still right today. I do not think that the evolutionary ‘explanations’ for consciousness that are currently doing the rounds are going to get us anywhere. These explanations do not address the hard problem itself, but merely the ‘easy’ problems that orbit it like a swarm of planets around a star. The hard problem’s fascination is that it has, to date, completely and utterly defeated science. Nothing else is like it. We know how genes work, we have (probably) found the Higgs Boson; but we understand the weather on Jupiter better than we understand what is going on in our own heads. This is remarkable.

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The uncertain future of particle physics

The field known as particle physics has as an important goal the search for the fundamental constituents of matter and it has proved very fruitful, leading us to our present understanding of matter being made up of quarks, gluons, and leptons. Pretty much everyone has heard of the Large Hadron Collider, the massive accelerator of radius 27 km near Geneva that was built mainly to search for the Higgs boson, and found it. But as is always the case with physics, immediately after any discovery comes the question: What next? And in this case, the answer is not clear. The Higgs was the last remaining particle in the Standard Model of particle physics so in one sense one can say that that chapter has come to end. But is the end merely that of the chapter or is it the end of that particular physics book, that we have reached the end of particle physics and all that remains are just mopping up operations?
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Nobel prize in physics given for gravity wave detection

To no one’s surprise, this year’s Nobel prize in physics has been awarded for the detection of gravity waves in September 2015. This was a huge project involving large numbers of experimentalists and theorists because the waves have such a weak signal. It is not unlike the earlier discovery of the Higgs boson in that the final detection was received with relief rather than surprise because both were firmly believed to exist. In the case of the Higgs, the prediction had been made fifty years earlier and with the gravitational waves, it had been made 100 years earlier, as a consequence of Albert Einstein’s General Theory of Relativity. The challenge in both cases was to overcome the immense technical hurdles involved in detecting them.
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Gravitational waves detected for the first time

It has been announced that scientists have detected gravitational waves for the first time, after a long and arduous search that rivaled the search for the Higgs boson in the difficulty involved even though it did not match it in costs. The announcement came in the form of a paper published yesterday in the journal Physical Review Letters, based on results obtained on September 14, 2015. You can read the paper here.
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Vote ‘Yes, No, Yes’ on Ohio’s three statewide ballot initiatives

November 3rd is election day in the US. Since I will not be able to vote in person that day, I have already voted by mail. In Cuyahoga County where I live, there is Proposition 8 that seeks a renewal of the so-called ‘sin tax’ that levies an extra tax on cigarettes, with the proceeds going to fund arts and cultural organization in the region. I voted in favor of it.
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The many-worlds interpretation of quantum mechanics

Those who have read about quantum mechanics have heard about the Many Worlds Interpretation (MWI) proposed by Hugh Everett in 1957. It is an idea seems unbelievable when one first hears of it because it implies the existence of many, a huge number in fact, of unobservable worlds that exist in parallel to our own but of which we are unaware. One needs to get over the initial feeling of incredulity before one can judge it properly on its merits.
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Detection of early inflation

A team of scientists has announced that they have detected direct evidence for one of the key elements of the inflationary model of the universe, that there was a rapid rate of expansion soon after ‘the beginning’, i.e., at times shortly after t=0. They did this by using a radiotelescope located at the South Pole called BICEP2, looking for signs of the imprint in the cosmic microwave background caused by gravitational waves triggered by the event.
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Wanted: Suggestions for a conference talk topic

I have been invited by to speak at third annual Pennsylvania State Atheist/Humanist Convention to be held in Pittsburgh on August 29-31, 2014 and have accepted. The invitation is quite flexible. The conference has no theme as such and they are giving me the freedom to pitch my own topic, although suggesting that one based on an earlier talk based on my series Why Atheism is Winning may be suitable. [Read more…]

Let the physics Nobel arguments begin!

As expected, this year’s Nobel prize in physics, announced today, was awarded for the discovery of the Higgs boson. The prize was awarded to two people, Francois Englert and Peter Higgs. As I said in one of my series of posts on the Higgs boson, the award of the prize was bound to raise hackles because five theorists had some claim to the discovery (there were six but Robert Brout died in 2011), as well the experimental groups that found the particle last year, not to mention CERN, the laboratory where the experiment was done. [Read more…]