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Tuesday, May 13, 2008

Bertrand Russell's Teapot

 
Here's the original version of Bertrand Russell's argument, quoted from Russell's teapot on Wikipedia.
If I were to suggest that between the Earth and Mars there is a china teapot revolving about the sun in an elliptical orbit, nobody would be able to disprove my assertion provided I were careful to add that the teapot is too small to be revealed even by our most powerful telescopes. But if I were to go on to say that, since my assertion cannot be disproved, it is an intolerable presumption on the part of human reason to doubt it, I should rightly be thought to be talking nonsense. If, however, the existence of such a teapot were affirmed in ancient books, taught as the sacred truth every Sunday, and instilled into the minds of children at school, hesitation to believe in its existence would become a mark of eccentricity and entitle the doubter to the attentions of the psychiatrist in an enlightened age or of the Inquisitor in an earlier time.
This is a very powerful argument; however, it relies on one important bit of information, namely that we could not detect Russell's teapot if it really were orbiting the sun.

This important assumption is about to be put to the test now that the teapot has been located and we have the Hubble telescope in orbit. See The Wedgewood Document on Sneer Review for all the details about the experiment.

We atheists could be in big trouble if this pans out ....


[See A Teapot in Space for the connection between Russell's teapot and The Hitchhiker's Guide to the Galaxy.]

4 comments :

John Dennehy said...

Happy Birthday Larry!

Anonymous said...

At any given moment, there are millions of teapots orbiting the sun between the earth and mars, and in a slightly elliptical orbit as well. They just happen to be resting on the surface of the earth.

Anonymous said...

Now if they were resting on the surface of earth would they be between Mars and and Earth (The atmosphere is part of Earth)?

Anonymous said...

My impression is that Russel’s analogy is deeply flawed from the start.
He want to prove the following philosophical principle:
if we have no evidence for something, it is hugely unlikely that it exists, or other formulated, we can know beyond reasonable doubt that it does not exist.
He give then the example of this celestial teapot rotating right now around Mars: each sensible person would agree this example is completely absurd, even if we could not disprove its existence since it is too small to get detected. There exists no argument against the teapot, but everybody would agree it is completely silly to believe it could exist, and this the case because of the lack of evidence.
However, I think most people would believe it does not exist not because of the lack of evidence ( which by itself would only justify agnosticism: I don’t know if there is a teapot or not) but because we have many overwhelming argument against its existence:
teapot are typically designed by human mind, they could not appear through natural process, whether on the earth or outside the earth. Moreover, we have also solid evidences that no men was on the moon, and the arrival of alien from an other planet who turned out to have developed exactly the same technology at the surface of Mars just to let that is highly unlikely.

So, if there was only no evidence about the CT of Russel, I would be only agnostic about its existence, I know with almost certainty it does not exist because of the existence of strong arguments against its existence.

The same thing is true by the way of the flying spaghetti monster: I am quite certain it does not exist not because of the absence of evidence (we have never seen it) but because of tremendous arguments speaking for its utter impossibility: a monster is a living thing, and we know living thing need a very good organized brain to exist, or at least a system able to handle information and to direct the body.
Of course, no such entity could be made up of spaghettis, it is physically impossible.

However, I completely ignore what kind of animals could have evolved on remote planets far away from our earth, and if I am quite certain there is no unicorn on the earth (with its description, it is impossible that such species would not have been detected although we have found fossils of a lot horses), I am agnostic about the existence of unicorns somewhere in the universe, I have no evidence for it, but I see also no reason why such an entity could not have evolved on an other planet (there are no known limits to the cleverness of mutations and natural selection) , so I simply don’t know.

So, my BASIC EPISTEMOLOGY could be summed up in the following manner:

- I believe with almost certainty the existence of things for which I have many evidences (that the earth rotate around the sun, that the human species has more intellectual capacities than the other primates, that each species share a common ancestor and so on…)

- I don’t know if something exists if there are neither positive nor negative evidences (a plastic teapot floating right now 50 km away from New York, the existence of an intelligent species somewhere in the space which look like bears, a parallel universe with fundamentally different laws of physics and so on and so forth)

- I believe with almost certainty that something does not exist if I have not only no evidences, BUT ALSO if there exists strong arguments against its existence ( a stinking invisible cheese monster hiding his odor and situated just between the keyboard and the screen of my computer, that my supervisor is in fact a disguised alien planing to invade the earth etc…).
In each case, my “a-monsterism” or “a-alienism” does not stem only from the absence of evidences, but also from the overwhelming arguments against them.

So, I think that atheism can not been assumed as a default position, before affirming “I know there is no personal God”, atheists have to provide positive evidences, the mere absence of evidences only lead to agnosticism.

Now, many insightful atheists accepts that, and have in fact provided strong arguments against the existence of a personal God, like the obvious imperfections in the nature, the facts that human minds completely depend on the brain and that parts of the personality is destroyed if parts of the brain are damaged, the religious confusion and so on and so forth.