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Author | Topic: Induction and Science | |||||||||||||||||||||||||||||||||||||||
crashfrog Member (Idle past 1496 days) Posts: 19762 From: Silver Spring, MD Joined: |
Your step 2 simply asserts the result of measurement as a premise. Your three steps do not include the actual act of measuring. It's right there in step two. Comparing the same characteristic of two objects is trivial, but you're making it into something more than it is. Measurement is not the act of putting a ruler next to a desk; it's the act of comparing a known physical trait to an unknown one. That's a deductive process.
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crashfrog Member (Idle past 1496 days) Posts: 19762 From: Silver Spring, MD Joined: |
This:
That could include comparing a small green apple with a big red apple Is not a response to this:
"Comparing the same characteristic of two objects is trivial,..". Comparing the same characteristics, as I specified, is trivial. It's trivial to measure the dimensions of apples, be they green or red. And it's trivial to measure the color of apples of any size.
We find it easy, but if you try to automate general purpose measuring with a robotic system, you will discover that it isn't at all easy. I can think of several easy ways to do it, specific to the measurement of each characteristic. If I wanted to measure the volume of an object I could immerse it and measure the displacement. Weight is trivial. Mass slightly less so. (I would probably measure its inertia.) Length? I suppose that means determining the long aspect of the object, but again, inertia and the center of mass can be used to properly orient the object for measurement. I mean, seriously. These things don't sound that hard. I'm not trying to be overconfident, and maybe you have a different definition of "non-trivial" than I do. But these things seem trivial if one simply applies a little creativity. The same as one would have to do in a mathematical proof.
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crashfrog Member (Idle past 1496 days) Posts: 19762 From: Silver Spring, MD Joined: |
Whether it is an apple or a plum is a characteristic. And what characteristic is that? It's fruitness? I'm sorry, but your response is apples and oranges, if you'll pardon the pun.
This doesn't work very well if the object dissolves in water, reacts chemically with water, or soaks up water. Who said anything about water?
That's because you have never tried to design a general purpose robotic system that could do it. And you have? I'm curious, now. Specifically, which robotic systems have you designed?
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crashfrog Member (Idle past 1496 days) Posts: 19762 From: Silver Spring, MD Joined: |
Admittedly, crashfrog was mainly concerned with the comparisons required for measuring. But even then, you have to know what you are measuring in order to know what you are comparing. We find it easy, but if you try to automate general purpose measuring with a robotic system, you will discover that it isn't at all easy. How did we wind up arguing the exact opposite side of the argument we each started on? It seems to me that if you're arguing that measurement requires proceeding from things you already know, or assume, then you're arguing the same basic point I started out making, and you started out attacking - measurment is deductive.
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crashfrog Member (Idle past 1496 days) Posts: 19762 From: Silver Spring, MD Joined: |
So sure, many people believe that we use induction. But they cannot actually demonstrate that. Four years later, I'm still waiting for you to tell me what else is left besides induction.
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crashfrog Member (Idle past 1496 days) Posts: 19762 From: Silver Spring, MD Joined: |
In any case, it doesn't matter. That you don't know of other possibilities does not prove that there are no other possibilities. It kind of constrains the debate, though. I'll be honest, I'm not going to go back over four years of posts, for the very simple reason that you were nonresponsive and evasive at the beginning and you've been nonresponsive and evasive here at the end, so there's no reason to believe that it's somehow different in the middle. And honestly it's as obvious now as it was then - science is primarily a process where generalities are derived from specifics; that's induction or induction-like. Reasoning about a population based on a representative sample? Inductive. Reasoning about universal laws of physics based on experiments located only on Earth? Inductive. Certainly there are examples of science proceeding from other means, but that some science may not be inductive in the narrowest possible sense does not mean that science is not an inductive process - it pretty obviously is, regardless of what questions you'd prefer not to answer.
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crashfrog Member (Idle past 1496 days) Posts: 19762 From: Silver Spring, MD Joined:
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So now that you are back Crashfrog, would you like to resume the debate concerning the science of economics having no empirical validity? We could, if you wanted, but I think my views have tempered somewhat - I'm prepared to accept that at least some people are engaged in real empiricial science in the field of economics. I'm still of the opinion that economics is primarily a way for people to identify as partisan in the supposedly non-partisan academic arena, but I've come to accept that at least some economists are genuinely interested in solving problems in a scientific way. If you have an interesting challenge to that view, I'm prepared to talk about it.
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crashfrog Member (Idle past 1496 days) Posts: 19762 From: Silver Spring, MD Joined: |
However, it is hard to think of alternatives that would count as induction. Would you consider drawing conclusions about populations based on samples of the population to be "inductive"? It strikes me as fairly inductive to say "this randomly-selected subpopulation had this distribution of characteristics; thus we conclude that the population as a whole has the same distribution, to a certain percent of confidence." Or, is your argument that the provisional, statistical qualification of the conclusion ("we're 95% certain that our sample population accurately represents the whole") disqualifying for true induction?
"Induction" is the name of a way of getting propositions from propositions. Don't you think it's more a way of getting propositions from observations?
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crashfrog Member (Idle past 1496 days) Posts: 19762 From: Silver Spring, MD Joined: |
I consider that kind of statistical inference to be deductive. Well, ok. What are the axioms?
It is done, after all, in accordance with some mathematical theorems in the field of probability theory. I've done mathematical induction, many times, and I can assure you that theorems are used. So I don't see the mere presence of mathematical theorems as disqualifying induction. If this were the case - how could mathematicians produce inductive proofs? Edited by crashfrog, : No reason given.
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crashfrog Member (Idle past 1496 days) Posts: 19762 From: Silver Spring, MD Joined: |
It is based on Lebesgue integration, where a probability is a measure (as used in Lebesgue integration theory). Not the axioms for the math, the axioms for the science.
Mathematical induction is deductive. *sigh* If you insist. So, then, what are the axioms?
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crashfrog Member (Idle past 1496 days) Posts: 19762 From: Silver Spring, MD Joined: |
Presumably that depends on the science. Funny - I'm a semester away from a BS in biochemistry and I've still not been taught anything I would consider axiomatic (except in the math curriculum.) Everything I've learned is the result of practical experimentation and observation - the specific. I don't perceive science as anything even close to a process where specifics are derived from general axioms assumed (not proven) to be true. Could you explain how it is that you seem to?
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crashfrog Member (Idle past 1496 days) Posts: 19762 From: Silver Spring, MD Joined: |
I'm disappointed that, four years in, you're not yet prepared to actually advance and defend a position.
Troubling. Edited by crashfrog, : No reason given.
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crashfrog Member (Idle past 1496 days) Posts: 19762 From: Silver Spring, MD Joined: |
Apparently, you are unable to see it. Someone who was interested in genuine debate would remove all ambiguity about their position by responding to misunderstandings by making a clear and concise restatement of it. But someone who is just interested in playing games would respond as you've been doing - by asserting that nobody understands what you mean, but not doing anything that would help them understand. It's clear which one you are.
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crashfrog Member (Idle past 1496 days) Posts: 19762 From: Silver Spring, MD Joined: |
I am not playing games. Well, but you are. Straggler gives a great example of someone who's actually engaged in the debate, not playing a game:
quote: Do you think anybody is going to misunderstand what Straggler is saying, here? I don't. (I've redacted for space, what with Stragger's post being directly above mine, and all.) That's what it looks like when someone is serious. This is what it looks like when someone is playing games:
I make clear statements that nobody responds to. Then I later point out the message, and still nobody responds. I don't know why it is invisible. I suspect that it is drowned out by the unstated assumptions that you and others are making - and you are probably not even aware that you are making unstated assumptions. I recognize that I have not been a successful communicator on this topic. I'm moving on. I suggest you do likewise. Debaters talk about their positions. Game-players talk about the debate. Edited by crashfrog, : No reason given.
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crashfrog Member (Idle past 1496 days) Posts: 19762 From: Silver Spring, MD Joined: |
However, no such thing has been demonstrated. If it was wrong, and you were someone who debated instead of playing games, you would show that it was wrong. But because you're a game-player and not a debater, you just assert that you've already shown that it was wrong, leaving us in a situation of competing characterizations of the debate instead of competing positions to be argued.
I have no doubt that you believe it has been demonstrated. Most of the people in this forum are true believers in the religion of inductionism. What's sad, is that you have abandoned your critical thinking skills. These are games, not anything that supports your contentions. These are playground taunts, not evidence. Disappointing.
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