All of Shakespeare's_Fool's Comments + Replies

"Open Source Software: There are days when I can't figure out whether I'm living in a Socialist utopia or a Libertarian one." -- Alex Future Bokov

I suspect the answer is "neither."

Libertarianism and Socialism are about (electoral) politics and government. Open Source Software is about voluntary co-operation.

John

0DanielLC
How is this evidence against the heat death of the universe? The first and second laws of thermodynamics (conservation of energy and increasing entropy) have been thoroughly tested. The heat death of the universe is implied by these laws.

George Weinberg,

Am I correct in assuming that you have neither followed nor studied the efforts of W. Edwards Deming and other practitioners of statistical quality control to introduce those methods into American manufacturing companies from the 1930s through the mid 1980s? That you do not know how few companies have adopted them even after the Baldrige award was established in 1987?

That you do not know how few managers (of manufacturing or anything else) even know that there is such a thing as design of experiments?

You may have experienced only the best o... (read more)

Eliezer,

The mechanisms of cosmological, biological, and organizational evolution are as dissimilar as the mechanisms of artistic (paint on canvass), photographic, and mental image making.

An artist uses a brush to paint a picture. Even though both make images, we don't expect to find a brush painting the paper or the chip inside a camera.

Corporations change. That the word evolution can be used to refer to such changes does not mean the changes are similar to the changes in stars or amoebae.

Is that what you are saying?

John

Eliezer,

The theory of change in stars over time that I am familiar with says that early stars were nearly pure hydrogen. Heavier elements were formed in them as they burned and when they became nova. Subsequent stars created and were composed of increasing concentrations of increasingly heavy elements. Did this not change the life span of stars? Did I misunderstand your point?

Also, is there an equation that is claimed to describe the change in the entropy of the universe?

Can it be used to figure out if the increase in entropy caused by a star going nova wo... (read more)

8bigjeff5
The theory that you are familiar with is a little off. What stars can produce is solely a function of size, not generation. Already fused material from a previous star does not allow the new star to fuse more elements. Likewise, the longevity of stars is solely a function of size. It's a balance between the heat of fusion and the pressure of gravity. More matter in the star means more pressure, which means the rate of fusion increases and more elements can be fused, but the fuel is consumed significantly faster. The smaller a star is the longer it burns, because there is less pressure being exerted by gravity to drive the fusion process. Big stars don't last long (the biggest only a few million years), but they produce the all of the naturally occurring elements - up to iron via normal fusion, and the heavier elements during supernova that occurs after iron fusion begins. Smaller stars like our sun will never get past the carbon stage and will never go supernova, and smaller stars still like brown dwarfs will never get past the hydrogen stage. These small stars last the longest because their rate of fusion is incredibly slow.

Eliezer,

Could you -- perhaps in another thread -- discuss how "The Evolution of Cooperation" (as Robert Axelrod put it) fits or does not fit with Huxley's comment. Can Axelrod and Huxley both be right?

John

bw,

Had we but world enough, and time, This coyness, lady, were no crime.


The grave's a fine and private place, But none, I think, do there embrace. --Andrew Marvell

John

"--" should have been "Shakespeare's Fool" John

Tom McCabe, Thank you for the comment. You have started me thinking about the differences between Occam's Razor and Einstein's "Everything should be made as simple as possible, but not simpler." John

I am not sure if my understanding of Occam’s Razor matches Eliezer Yudkowsky’s.

I understand it more as (to use a mechanical analogy) “don’t add any more parts to a machine than are needed to make it work properly.”

This seems to fit Occam’s Razor if I take it to be a guide, not a prediction or a law. It does not say that the theory with the fewest parts is more likely to be correct. It just reminds us to take out anything that is unnecessary.

If scientists have often found that theories with more parts are less often correct, that may further encourage us to... (read more)

I have been looking for 2 texts on the design of experiments. One that can be used by non-statisticians like graduate students in physics, chemistry, economics and the like. Another to introduce the non-mathematical to the field. One group who I think could benefit from the design and analysis of experiments are some people I know who run microcredit operations. Any suggestions? John

Abraham Pais, one of Einstein's many friends, has said that Einstein loved to joke. Are you sure his "sorry for the good Lord" wasn't a bit of humor?

3TobyBartels
I've always assumed that it was a joke. If he'd been serious, then he'd have felt sorry for Eddington.

In Boston we have heard many reporters claim that the delays in the Big Dig (the highways tunneled under the city and the harbor) were increased by contractors stretching out the work to increase their incomes. This suggests that there are strong incentives, particularly in projects paid for through government, to over promise (underbid) and under deliver (negotiate higher pay when work is under way).

Not so much a planning bias as a pocket book bias.

John

4[anonymous]
Very very very late reply. But there's been research on this in recent years. See Bent Flyvbjerg's papers on "strategic misrepresentation", where he outlines how perverse incentives can lead people to intentionally make overconfident predictions in government work projects. However, Flyvbjerg also points out that there is probably a combination of psychological factors involved, too, as we continue to see this kind of overconfidence/optimism in areas like student predictions or trading (where actively trading often does worse).

Eliezer,

Thank you for the quotation:

"We believe that we are already living in a democracy, although some factors are still missing, such as the expression of the people's will"

I hope someone can tell us who said it.

John

Eliezer,

School is all about words?

In shop class if the pieces didn't fit together, weren't sanded down smooth, or the contraption didn't work, you flunked the course.

In chemistry lab, if you didn't measure the pH right, same problem.

In physics if your measurements of waves or acceleration down the inclined plane were wrong down went your grade.

Guess we must have gone to different schools.

John

arundelo170

(Thread necromancy courtesy of TeMPOraL's comment.)

inclined plane

Here's Feynman criticizing the Brazilian educational system (in the late 1940s and early 1950s), but I get the impression from his writing that he thought this was a widespread problem that was particularly bad in Brazil. (See for instance the stuff about American textbooks later "Surely You're Joking".)

Then I held up the elementary physics textbook they were using. "There are no experimental results mentioned anywhere in this book, except in one place where there is a b

... (read more)
8TeMPOraL
I've never seen or heard of such a school, at least not in my country. Maybe vocational schools grade like that, but in high schools I know, there's no fitting togetger, sanding, or measuring anything. It's just memorizing theory and solving exercises.

A student who said it was done by magic would, of course, have been correct. Because it was done by magic.

The teacher moved the plate when the audience wasn't looking. That is one of the ways magicians perform their tricks.

If they had used words such as "supernatural," "miracle," or "paranormal," then they would not have been discussing physics.

But good magicians are the best practical physicists.

If Richard Feynman can say:

What I am going to tell you about is what we teach our physics students in the third or fourth year of graduate school... It is my task to convince you not to turn away because you don't understand it. You see my physics students don't understand it. ... That is because I don't understand it. Nobody does.

then it may be strange to the point of being beyond understanding.

(Nobel Lecture, 1966, The Strange Theory of Light and Matter)