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Eliezer Yudkowsky from LessWrong has similar essays on education, they were a quite amusing read. Fake Explanations (2007) [0]: > Once upon a time, there was
by segfaultbuserr 7y ago
Eliezer Yudkowsky from LessWrong has similar essays on education, they were a quite amusing read.
Fake Explanations (2007) [0]:
> Once upon a time, there was an instructor who taught physics students. One day the instructor called them into the classroom and showed them a wide, square plate of metal, next to a hot radiator. The students each put their hand on the plate and found the side next to the radiator cool, and the distant side warm. And the instructor said, Why do you think this happens? Some students guessed convection of air currents, and others guessed strange metals in the plate. They devised many creative explanations, none stooping so low as to say “I don’t know” or “This seems impossible.” And the answer was that before the students entered the room, the instructor turned the plate around.
> Consider the student who frantically stammers, “Eh, maybe because of the heat conduction and so?” I ask: Is this answer a proper belief? The words are easily enough professed—said in a loud, emphatic voice. But do the words actually control anticipation?
> Ponder that innocent little phrase, “because of,” which comes before “heat conduction.” Ponder some of the other things we could put after it. We could say, for example, “Because of phlogiston,” or “Because of magic.”
> “Magic!” you cry. “That’s not a scientific explanation!” Indeed, the phrases “because of heat conduction” and “because of magic” are readily recognized as belonging to different literary genres. “Heat conduction” is something that Spock might say on Star Trek, whereas “magic” would be said by Giles in Buffy the Vampire Slayer.
> [...] They simply moved their magic from one literary genre to another.
Guessing the Teacher's Password (2007) [1]:
> [...] And when I finally understood, I realized that the whole time I had accepted the honest assurance of physicists that light was waves, sound was waves, matter was waves, I had not had the vaguest idea of what the word “wave” meant to a physicist.
> There is an instinctive tendency to think that if a physicist says “light is made of waves,” and the teacher says “What is light made of?” and the student says “Waves!”, then the student has made a true statement. That’s only fair, right? We accept “waves” as a correct answer from the physicist; wouldn’t it be unfair to reject it from the student? Surely, the answer “Waves!” is either true or false, right?
> [...] And this leads into an even worse habit. Suppose the teacher asks you why the far side of a metal plate feels warmer than the side next to the radiator. If you say “I don’t know,” you have no chance of getting a gold star—it won’t even count as class participation. But, during the current semester, this teacher has used the phrases “because of heat convection,” “because of heat conduction,” and “because of radiant heat.” One of these is probably what the teacher wants. You say, “Eh, maybe because of heat conduction?”
> This is not a hypothesis about the metal plate. This is not even a proper belief. It is an attempt to guess the teacher’s password.
[0] https://www.lesswrong.com/s/5uZQHpecjn7955faL/p/fysgqk4CjAwhBgNYT https://www.lesswrong.com/s/5uZQHpecjn7955faL/p/fysgqk4CjAwh...
[1] https://www.lesswrong.com/posts/NMoLJuDJEms7Ku9XS/guessing-the-teacher-s-password https://www.lesswrong.com/posts/NMoLJuDJEms7Ku9XS/guessing-t...
- barrkel 7y agoUnderstanding is an informational compression of the relationship between the symbols. Humans are machines for generalizing from specifics. A lot of teaching is repeated presentation of examples in the hope that the humans in the class learn the generalization.
- paganel 7y agoAnd physics is somewhat "understandable", as in given enough inputs (some measured physical stuff + some maths) one could say that from a certain point on he/she "understands" physics, but what should we do when it comes to social sciences? Take history for example, we don't actually know the exact reason for why Hitler came to power. Was it the fault of the Weimar democracy? Was it the fault of the Nazis themselves only? A combination of the two? Some other third factor? And, most importantly, can that happen again? We actually do not know, and we're talking about one of the most important events of the 20th century, an event that directly caused the death through extermination of millions of people. And if you extend that line of reasoning to other similar events you'd discover that we are in the dark there, too (afaik we still have no direct proof for what caused by Great Depression, we're not even sure why the Great Depression "stopped" or when exactly it "stopped"). Which is to say that we're navigating in the dark most of the time when it comes to education, saying that we "understand" some stuff is only the exception, not the rule.
- segfaultbuserr 7y agoGreat commentary. The idea that insights on history, society, future and humanity can be obtained by studying existing history and extrapolating it, is called historicism. Unfortunately, we don't actually know whether it works or it's a completely misguided school(s) of thought. It's simply impossible to do any controlled experiment on the history and society. From time to time, I'll imagine how many of our serious social problems can be completely solved if it's possible to simulate the past and future accurately using a sandbox, allowing hypothesis and policies to be tested. And it's not a new idea in SciFi, for example, Isaac Asimov's Psychohistory is one.