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Showing posts with label rationalism. Show all posts
Showing posts with label rationalism. Show all posts

Monday, December 28, 2009

Are all valid ideas derived from Rationalism? A palette of reason.

source: Zoonomian
HASSNERS.org highlights
HASSNERS.org comments: Tim Jones draws insights from a talk by Stephen Fry and expands on the meaning of Rationalism and its many synonyms. Read full article. Just as some concepts are grounded in the 'Scientific Method' so can other (equally valid?) ideas be derive from Rationalism and Empiricism.
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Yet at an emotional level, attacks on rationality can grate, especially with scientists and technologists.  I bristled when Fry likened over-zealous support for rationalism to belief in religion.  Was this the same Stephen Fry whose debate trounced the Catholic Church, and who regularly shares platforms with the likes of Richard Dawkins? But rather than rejecting rationalism, I believe he made a valid point: that it is too easy to assume a rationalist approach in all situations – however complex – when sometimes the abstract premises from which we deduce knowledge for decision making are just not up to it.
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A palette of reason
Moving on, but with an eye to Fry’s sentiments, there seem to be an awful lot of reasonable sounding words out there: like ‘rational’, ‘empirical’, ‘evidence-based’, ‘logical’; and indeed –  ’reasonable’.  Whether in the context of drugs policy, climate change, faith schools, or whatever;  these words sit like so many pigments on a palette of reason, wielded by individuals and governments alike, to convince us – and themselves – that a particular course of action carries some special sanction.  But why do the same words frequently lead to misunderstandings and angst?
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It seems to be down to definition and interpretation.  Boiling our list down to rationalism and empiricism (subsuming ‘evidence-based’ into empiricism and  logic into rationalism) the dictionary definitions and learned philosophical commentaries leave plenty of scope for confusion.
The  Compact Oxford English Dictionary defines rationalism as:
the practice or principle of basing opinions and actions on reason and knowledge rather than on religious belief or emotional response’and empiricism as

the theory that all knowledge is derived from experience and observation
which seems pretty clear. But  the Oxford Pocket English Dictionary muddies the rational water by including philosophical and theological interpretations that flex the definition of rationalism to a form no scientist could agree with.  It seems scientific rationalism is just one brand.  I’ve really no idea what to make of the theological interpretation given as:
the practice of treating reason as the ultimate authority in religion’.
but it put me in mind of this quote from the current Pope, relayed in this interview by the Vatican astronomer Guy Consolmagno, and equally confusing to my concept of rationality:
religion needs science to keep itself away from superstition

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 And when A.N.Wilson goes on to invoke the R-word:
‘Those who dare question scientists are demonised for their irrationality. Global warming may or may not be a certainty, but anyone who queries it has his sanity questioned. Cast doubt on these gods of certainty and you are accused of wanting to suppress free expression -…’
Are scientists certain about climate science? I don't think so. So anyone who questions it should surely not be demonised! For example IPCC Synthesis report pg 17 states "Most of the observed increase in global average temperatures since the mid-20th century is very likely due to the observed increase in anthropogenic GHG concentrations." On pg 5 the IPCC define 'very likely' and other terms viz. 
Where uncertainty in specific outcomes is assessed using expert judgment and statistical analysis of a body of evidence (e.g. observations or model results), then the following likelihood ranges are used to express the assessed probability of occurrence: virtually certain >99%; extremely likely >95%; very likely >90%; likely >66%; more likely than not > 50%; about as likely as not 33% to 66%; unlikely <33%; very unlikely <10%; extremely unlikely <5%; exceptionally unlikely <1%.
he’s right;  anyone who doesn’t comply with the scientific definition of rationality is demonised.  Personally I’d like the scientific definition to be universally accepted, but while there are powerful constituencies who benefit from and delight in wooliness defended as realism or flexibility  (politicians, theologians, dictionary compilers), I can’t see it happening.
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 Likewise, the only kind of rationality under which a discussion on the virtues of faith schools makes sense is one that allows ethical and metaphysical propositions (e.g. is there a god).  Moreover, we’re left with politicians working up a drugs policy using an ethics-based ‘political rationality’, and an education policy that recognises and values a ‘religious rationality’.
Unfortunately, the transparency being called for concerning when and under what circumstances this flexing of scientific rationalism happens, also threatens politicians with the anathema of exposing less visible agendas traditionally played close to the chest.

Saturday, October 17, 2009

Definitions of non-theists

source: http://www.religioustolerance.org/at_ag_hu.htm
HASSNERS.org highlights
HASSNERS.org comments

Useful list of defintions - sell 'Labels' for terms defined.


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This work by crabsallover is licensed under a Creative Commons Attribution-Non-Commercial-Share Alike 2.0 UK: England & Wales License.

Thursday, July 10, 2008

Science in ‘The Mist’

David Flint, Jul 08, 2008 08:51:00 GMT

(Caution: This post reveals the plot and ending of the film!)

Trailer: http://www.imdb.com/video/imdb/vi2729509145/

This film, now on general release in the UK, could be described as War of the Worlds meets Lord of the Flies. A collection of ‘ordinary folks’ are trapped in a small town supermarket by an exceptionally thick mist. It soon becomes clear that there is something dangerous in the mist.

The hero is shown as an ordinary Joe – an artist and a father. His first test is to persuade a group of shop staff that there really is something dangerous outside. He’s unable to do so and the man who goes outside to fix a problem is attacked by giant tentacles. Our hero’s courage is not enough to save that life, though he does cut off a piece of tentacle.

He then faces a neighbour who refuses to believe in the monsters and leads a group of people into the mist and to their deaths. It may not be accidental that the neighbour is a lawyer. He’s shown as a person whose life is based on suspicion of his fellows and persuasion rather than respect for truth.

Our hero has therefore lost his first two conflicts with folly. However, an attack by monsters (in which the hero fights bravely) proves the reality of the threat.

Now he must face a different kind of folly in the person of Mrs Carmody, the local religious nutcase. She’s depicted as a vicious crackpot who first declares the monsters to be the demons foretold in the Book of Revelation and then organizes her followers to sacrifice people to them. The anti-religious subtext is clear: religions make absurd claims and foster violence.

When I saw the film, in a quite ordinary London suburb, the audience reaction was even more interesting. They were very hostile to Carmody and greeted her death with applause. I cannot remember the last time I heard an audience applaud a film.

The film explains the monsters as inhabitants of a parallel universe who’ve been let into our universe by the folly of scientists at a local army base. Curiously there is no scientist in the film – three junior soldiers serve as proxies. Despite the need for organized violence and defensive barriers the soldiers play no part in the defence of the supermarket. Their role is to show guilt at what the scientists have done and to attract the hostility of Carmody and her crew.

The hero uses commonsense in accepting the reality of the monsters and organizes people to fight them. He resists both the lawyer’s denial of reality and the religious leader’s determination to interpret events in fantastical term. He plans rationally and acts with speed and courage. He is a rational and humanistic hero – though admittedly not a scientific one.

But he and his team are not perfect. They escape from the store but surrender to premature despair. All but one are dead by the time the Army arrives to save the day with flame throwers and biological protection suits.

The final message then is: Never despair.

Thursday, December 06, 2007

Rationalist - HASSNERS

HASSNERS 6th Statement

Rationalist

HASSNERS - truth can be discovered by reason.


updated September 2009

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A Rationalist (wikipedia) is someone who believes in Rationalism. A Rationalist believes that "the criterion of truth is not sensory but intellectual and deductive."

Famous Rationalists include Plato, Socrates, Descartes, Leibniz, Spinoza and Kant.

Rationalists believe "that reason has precedence over other ways of acquiring knowledge" or even "that Rationalism is the unique path to knowledge".

Rationalism is often contrasted with empiricism. Empiricism holds that ideas come to us through experience, either through the five external senses or through such inner sensations as pain and pleasure, and thus that knowledge is essentially based on or derived from experience. Rationalism & empiricism are not mutually exclusive - you can be both a rationalist and an empiricist.

Friday, July 06, 2007

Rational Democrat

source: Letters, New Humanist magazine July/August 2007
It was most timely of you to draw attention in your editorial ('He did God', May/June 2007) to the insidious role of religion in the government of this country - and the part played in this recidivist tendency by Tony Blair.

The government of the people by the people is the only fair way for the regulation of our nation. The vast majority of the citizens are rationalist. A rational approach to politics is therefore a prerequisite for good government.

Richard Eastburn-Hewitt, Kingston-upon-Thames