Recent Responses

It is now known that perpetual motion machines are scientifically impossible because of the Principle of Conservation of Energy. Now, suppose someone is able to create a perpetual motion machine. This would entail that a known law of nature has been violated. My question then is this: should that particular act be considered a miracle?

If someone figured out how to Allen Stairs 10/26/18 (changed 10/26/18) Permalink If someone figured out how to build a perpetual motion machine, this would mean that something formerly but falsely believed to be law of nature would have been found not to be. It wouldn't mean that a bona fide law of nature had been violated. Or at least that's a reasonable t... Read more

Hi! I was wondering if I could ask a few moral questions related to Brett Kavanaugh. 1. Is it morally bad to profit from a crime; and, if so, why? It seems to me that most traditional moralities seem to proscribe against acts (like "Thou shalt not murder"), and sometimes against the emotional motivation for acts (greed, lust, pride), but that they aren't focused on the consequences of acts. It also seems to me that act utilitarianism wouldn't regard profiting from a crime as bad per se. If anything, the resulting happiness is a good: it's just that it needs to be weighed together with the resulting suffering. 2. In the case of Brett Kavanaugh, let's assume: (a) that he did commit assaults while drunk 40 years ago; and (b) that, after college, he went on to lead an unimpeachable life. In this scenario, would the assaults then constitute a moral reason not to confirm him to the Supreme Court? What does the panel make of the following claims? -- (a) He's a different person now, so there is no moral problem. 40 years says so. Convicted criminals need to do less than that to prove they deserve to have full citizenship rights reinstated. -- (b) Criminals can still be good Xs -- good doctors, good teachers, good judges, etc -- so there is no moral problem. There is no clear causative link between assaults then and judging ability now. -- (c) Assuming there are moral objections to profiting from a crime, Kavanaugh wouldn't be. Rather, he would be profiting from having got away with a crime, from not having it on his record.

You ask if it's morally bad Allen Stairs 10/25/18 (changed 10/25/18) Permalink You ask if it's morally bad to profit from a crime. Since the answer seems pretty clearly to be yes, I'm a bit unsure what would count for you as saying why, but let's try an example: Robin's spouse carries a large life insurance policy. Robin kills him—a morally bad thing, I... Read more

Can philosophy prove/disprove anything or it is just inconclusive and useless?

One of philosophy's most Stephen Maitzen 10/23/18 (changed 10/23/18) Permalink One of philosophy's most important uses is in helping us to spot bad questions. It's better to diagnose the defect in a bad question than to try to answer a bad question straight up. Take your question, for instance. Its defect is your false dichotomy: your assumption that an... Read more

Why are non-material objects not causally efficacious? Or, why can’t non-material objects partake in causality? Is there a reason other than simply saying that non-material objects are as such by definition? Thank you!

The first point is that not Allen Stairs 10/14/18 (changed 1/5/19) Permalink The first point is that not everyone would accept the presupposition of your question. Most obviously, theists wouldn't. According to many varieties of theism, the First Cause of the material world is not a material thing. Needless to say, not everyone agrees. But you can deny that... Read more

Lots of science today (meteorology, cosmology) is based on computer simulation or modeling for those phenomena that are difficult to observe directly. If a computer simulation gives me a result consistent with what we can see (star distribution for two galaxies that collide) can we infer that the underlying process is the same in the simulation and in physical world? The simulation is just numbers (or symbols) input as data about the system(s) modeled. Are numbers the underlying "stuff" of objects, too, rather than atomic particles, etc.?

Suppose that instead of a Allen Stairs 10/5/18 (changed 10/5/18) Permalink Suppose that instead of a computer producing a simulation, we have an army of thousands of worker-bee science grad students performing and assembling vast numbers of calculations matching all the steps that a computer simulation would call for. Suppose the results are consistent with... Read more

Can you coherently consistently imagine a universe where laws of thoughts are false?

If by "the laws of thoughts" Stephen Maitzen 9/20/18 (changed 9/21/18) Permalink If by "laws of thoughts" you mean laws of logic, then no. No coherent (that is, self-consistent) situation can violate any law of logic. Even philosophers, such as Graham Priest, who claim to be able to imagine situations that violate the law of non-contradiction conce... Read more

In a reply to a question about the sorites paradox, Professor Maitzen writes: "Logic requires there to be a sharp cutoff in between those clear cases -- a line that separates having enough leaves to be a head of lettuce from having too few leaves to be a head of lettuce. Or else there couldn't possibly be heads of lettuce." However, there is no justification that clearly leads from his premise to his conclusion: obviously we can have heaps of sand without knowing exactly how many grains of sand are required to distinguish a "heap" from a pile of individual sand grains, or else there would not be a so-called "paradox" in the first place! The premise as he presents it sounds like a tautology, not a logical argument. What makes a "heap" of sand is not only how many grains of sand there are, but also how those grains are arranged. If you took a "heap" of sand and stretched it out in a line, you would have the same number of grains, but it would no longer be a "heap." You could take a head of lettuce and separate it into its individual leaves, but then you'd no longer have a head of lettuce. So you can clearly have a head of lettuce without knowing the exact number of leaves required, since we can easily validate that assertion through an appeal to empirical experience. The sorites paradox tries to impose a degree of precision on a concept that by design is meant to be indeterminate in number. His answer does not address that consideration at all, but merely insists that a heap "must be" determinate in number or else it could not exist.

What makes a "heap" of sand Stephen Maitzen 9/20/18 (changed 9/20/18) Permalink What makes a "heap" of sand is not only how many grains of sand there are, but also how those grains are arranged. If you took a "heap" of sand and stretched it out in a line, you would have the same number of grains, but it would no longer be a "heap." Agreed! Even so,... Read more

I recently watched a tv show that produced a line of questioning in my head on the virtue of reality. How do we define reality? What's the difference between reality and a world that is the perfect replication of reality? What would be the difference between the two worlds? Is it truly possible to know when we are living in reality? I guess I'm mostly asking if there is work form past philosophers that I could read on the subject?

A perfect replica of reality Allen Stairs 9/13/18 (changed 9/13/18) Permalink A perfect replica of reality would be like reality in all respects. It would contain trees—real trees. It would contain people—real people. It would contain fake butter—real fake butter. And if it were a perfect replica, everything in reality would be in the replica. So in every se... Read more

Is the Sorites paradox really a paradox, or is it more properly considered to be a logical fallacy? By definition, the term "heap" is indeterminate. Yet the Sorites paradox tries to force a specific definition on what is by design an indeterminate concept: the very idea of defining the term "heap" as a specific number of grains of sand is fallacious, is it not? I don't see a paradox here as much as I see confusion about how terms are defined. How many grapes are in a bunch of grapes? How many leaves are in a head of lettuce? How many grains are in an ear of corn? How many chips are in a bag of potato chips? in each of the above questions, the answer will vary from one example to the next, the exact number is not particularly germane to the concept. So what makes a heap different from a bunch or any of the other examples?

I see the sorites paradox as Stephen Maitzen 8/23/18 (changed 8/24/18) Permalink I see the sorites paradox as a very serious problem, not a logical fallacy that's easy to diagnose and fix. The paradox arises whenever we have clear cases at the extremes but no known line separating the cases where a concept applies from the cases where the concept doesn't app... Read more

Do people owe a debt for investments made in them which they never had an option to refuse? Some examples might be: Debt to society for paying for your childhood education Debt to parents for raising you Should it be considered ungrateful for someone to discontinue their affiliation with the investor if they feel that the relationship isn't beneficial to them?

You pose the question twice: Allen Stairs 8/12/18 (changed 8/12/18) Permalink You pose the question twice: first by asking if people owe a debt and second by asking if behaving in certain ways would be ungrateful. I think the difference matters. I don't know whether a child owes a debt to her parents—at least not in a certain strict sense. The primary use of... Read more