I’m not sure what one is supposed to do upon concluding that one is quite that cuckoo. Upon getting that far gone, what can you do? Can you even assume that your actions and words will leave your brain and impact reality in roughly the way you intend? If you are that crazy, and you try to walk across the room, will you get there? Are you in a room? Do you have legs? It might be that being as insane as all that is so game over that, whatever one’s epistemic position is, one has to operate as though the observations were correct.
It would be a good idea to consider the hypothesis that one is crazy in a conventional way, such as schizophrenia. One can try to test that hypothesis. But the “anything goes”-crazy hypothesis isn’t really useful.
Oh, you’re right—and what’s more, it doesn’t take much to make the “anything goes”-crazy hypothesis more ridiculous than magic. We know that human brains have limited processing power and storage capacity, so if you can produce sensations which the brain should be unable to fake, you can reduce the probability mass of the hypothesis significantly.
I wrote out a long response involving an analogy to a CPU self-test program, but at the end I realised that I had arrived at the same conclusion you stated. :-) So I’m voting you up and wish to extend you an Internet high-five.
However, on this topic, it seems like there’s no good approach for handling the scenario where your brain messes with your internal tests in such a way as to point them invariably at a false positive, i.e. anosognosia.
I agree that a good self-test of the sort you describe would reduce the probability for most kinds of anything-goes insanity, but what sort of test could be used to check against the not-insignificant subset of insanity that specifically acts against self-tests and forces them to return false positive at the highest level?
It’s always possible to produce insane minds that cannot fix themselves—the interesting question is how big a diff can be bridged at what price. And that’s a bit more difficult to answer.
I wonder, however, whether a sufficiently educated anosognosiac could determine that the sources informing them of their paralysis were more reliable than their firsthand observations. It seems unlikely, of course.
The answer appears to be no. There were a few articles in Scientific American: Mind about it a while back. Experiments show that the flaw causing stuff like people denying they can’t move their arms is part of their logic processing; they proved this by figuring out they could reset their thinking for a short time, at which point people were able to clearly state that they were paralyzed and they were surprised at their earlier thinking.
After a minute, the effect wore off and the patient returned to an earlier state. So the effect appears to short circuit the decision making process on a hardware level.
True. Even if upon witnessing such absurdities he had immediately assumed he was seeing things and demanded to be checked into a mental hospital, he couldn’t even be sure that there was really anyone around him to hear, or that he was really saying what he thought he was saying, etc.
But then, if he’s that far removed from reality, whatever he’s really doing must appear crazy enough to draw the attention of those around him. Maybe he’s already in a mental institution… which he imagines to be a school of wizardry! From the inside, he already sort of feels (and acts) as though he’s the only sane person in a madhouse… while in reality, he’s just another patient.
I’m not sure what one is supposed to do upon concluding that one is quite that cuckoo. Upon getting that far gone, what can you do? Can you even assume that your actions and words will leave your brain and impact reality in roughly the way you intend? If you are that crazy, and you try to walk across the room, will you get there? Are you in a room? Do you have legs? It might be that being as insane as all that is so game over that, whatever one’s epistemic position is, one has to operate as though the observations were correct.
It would be a good idea to consider the hypothesis that one is crazy in a conventional way, such as schizophrenia. One can try to test that hypothesis. But the “anything goes”-crazy hypothesis isn’t really useful.
Oh, you’re right—and what’s more, it doesn’t take much to make the “anything goes”-crazy hypothesis more ridiculous than magic. We know that human brains have limited processing power and storage capacity, so if you can produce sensations which the brain should be unable to fake, you can reduce the probability mass of the hypothesis significantly.
How can you use your brain to test if a sensation your brain is experiencing cannot be faked by your brain?
How long would it take you to factor the number 495 967 020 337 by hand?
And how long would it take you to multiply two numbers, both less than 1 300 000, together?
Some operations are much easier to verify than to execute.
I wrote out a long response involving an analogy to a CPU self-test program, but at the end I realised that I had arrived at the same conclusion you stated. :-) So I’m voting you up and wish to extend you an Internet high-five.
However, on this topic, it seems like there’s no good approach for handling the scenario where your brain messes with your internal tests in such a way as to point them invariably at a false positive, i.e. anosognosia.
I agree that a good self-test of the sort you describe would reduce the probability for most kinds of anything-goes insanity, but what sort of test could be used to check against the not-insignificant subset of insanity that specifically acts against self-tests and forces them to return false positive at the highest level?
It’s always possible to produce insane minds that cannot fix themselves—the interesting question is how big a diff can be bridged at what price. And that’s a bit more difficult to answer.
I wonder, however, whether a sufficiently educated anosognosiac could determine that the sources informing them of their paralysis were more reliable than their firsthand observations. It seems unlikely, of course.
The answer appears to be no. There were a few articles in Scientific American: Mind about it a while back. Experiments show that the flaw causing stuff like people denying they can’t move their arms is part of their logic processing; they proved this by figuring out they could reset their thinking for a short time, at which point people were able to clearly state that they were paralyzed and they were surprised at their earlier thinking.
After a minute, the effect wore off and the patient returned to an earlier state. So the effect appears to short circuit the decision making process on a hardware level.
True. Even if upon witnessing such absurdities he had immediately assumed he was seeing things and demanded to be checked into a mental hospital, he couldn’t even be sure that there was really anyone around him to hear, or that he was really saying what he thought he was saying, etc.
But then, if he’s that far removed from reality, whatever he’s really doing must appear crazy enough to draw the attention of those around him. Maybe he’s already in a mental institution… which he imagines to be a school of wizardry! From the inside, he already sort of feels (and acts) as though he’s the only sane person in a madhouse… while in reality, he’s just another patient.