I don’t think the failure of someone to be convinced of some position is ever strong evidence against that position.
Ever is a strong word. If a competent expert in a field who has a known tendency to err slightly on the side of too much openness to the cutting edge fails to be convinced by a new finding within his field that says an awful lot.
I disagree with person x about y, therefore person x is wrong about z? Do we even have to go into why this is fallacious?
That is simply not the form of the argument you quote. “Ben Goertzel believes in psychic phenomenon” can not be represented as “I disagree with person x ”.
That is simply not the form of the argument you quote. “Ben Goertzel believes in psychic phenomenon” can not be represented as “I disagree with person x ”.
I’m being generous and giving the original comment credit for an implicit premise. As stated the argument is “Person x believes y, therefore person x is wrong about z.” this is so obviously wrong it makes my head hurt. WrongBot’s point is that someone has to have a poor reasoning capacity to believe in psy. But since he didn’t provide any evidence to that effect it reduces to ‘I disagree with Goertzel about psy’.
I generally don’t try to provide evidence for every single thing I say, and I am especially lax about things that I consider to be incredibly obvious.
But I’m annoyed enough to lay out a very brief summary of why belief in PSI is ludicrous:
It isn’t permitted by known physics.
There are no suggested mechanisms (so far as I’m aware) for PSI which do not contradict proven physical laws.
The most credible studies which claim to demonstrate PSI have tiny effect sizes, and those haven’t been replicated with larger sample sizes.
Publication bias.
PSI researchers often seem to possess motivated cognition.
We’ve analyzed the functioning of individual neurons pretty closely. If there are quantum microtubules or other pseudoscientific nonsense in them, they don’t seem to affect how those individual neurons behave.
No one has to give evidence for everything they say but when things that you thought were obviously wrong begin to get defended by physics-literate reductionist materialists that seems like a good time to lower your confidence.
There are no suggested mechanisms (so far as I’m aware) for PSI which do not contradict proven physical laws.
Well to begin with, Goertzel’s paper claims to be such a mechanism. Have you read it? I don’t know if it works or not. Seems unwise to assume it doesn’t though.
Publication bias, motivated cognition and effect size are all concerns and were my previous explanation. I found this meta-analysis upset that view for me.
If PSI exploits weird physics in a complicated manner and produces such tiny effects, where the hell did the mechanism come from? PSI would obviously be a very useful adaptation, so why don’t we see it in other species? Why aren’t the effects stronger, since there’s such a strong evolutionary pressure in favor of them?
Goertzel’s paper also includes psychokinesis as a PSI phenomenon supported by strong evidence. I would love to see the study he’s talking about for that one. Or a video.
If PSI exploits weird physics in a complicated manner and produces such tiny effects, where the hell did the mechanism come from? PSI would obviously be a very useful adaptation, so why don’t we see it in other species? Why aren’t the effects stronger, since there’s such a strong evolutionary pressure in favor of them?
All of this is also discussed in Outside the Gates. I can try to dig up what he said this weekend.
Goertzel’s paper also includes psychokinesis as a PSI phenomenon supported by strong evidence. I would love to see the study he’s talking about for that one. Or a video.
The experiments aren’t macroscopic. The results involve statistical deviations from expected normal distributions of say, white noise generators when participants try to will the results in different directions. I don’t think these results are nearly as compelling as other things, see Jahn and Dunne 2005 for example. They had some methodological issues and the one attempt that was made at replication, while positive, wasn’t significant at anywhere near the level of the original.
If you’re actually interested you should consider checking out the book. It is a quick, inexpensive read. Put it this way: I’m not some troll who showed up here to argue about parapsychology. Six months ago I was arguing your position here with someone else and they convinced me to check out the book. I then updated significantly in the direction favoring psi (not enough to say it exists more likely than not, though). Everything you’ve said is exactly what I was saying before. It turns out that there are sound responses to a lot of the obvious objections, making the issue not nearly as clear cut as I thought.
As stated the argument is “Person x believes y, therefore person x is wrong about z.” this is so obviously wrong it makes my head hurt.
It would be wrong if it were a logical deduction instead of an inference. That is, if WrongBot actually wrote ‘therefore’ or otherwise signaled absolute deductive certainty then he would be mistaken. As is he presents it as evidence, which it in fact is.
WrongBot’s point is that someone has to have a poor reasoning capacity to believe in psy. But since he didn’t provide any evidence to that effect it reduces to ‘I disagree with Goertzel about psy’.
There is a clear implied premise ‘psychic phenomenon are well known to be bullshit’. Not all baseline premises must be supported in an argument. Instead, the argument should be considered stronger or weaker depending on how reliable the premises are. I don’t think WrongBot loses too much credibility in this case by dismissing psychic phenomenon.
It would be wrong if it were a logical deduction instead of an inference. That is, if WrongBot actually wrote ‘therefore’ or otherwise signaled absolute deductive certainty then he would be mistaken. As is he presents it as evidence, which it in fact is.
It isn’t even evidence until you include a premise about the likelihood of y, which we agree is the implied premise.
There is a clear implied premise ‘psychic phenomenon are well known to be bullshit’. Not all baseline premises must be supported in an argument. Instead, the argument should be considered stronger or weaker depending on how reliable the premises are. I don’t think WrongBot loses too much credibility in this case by dismissing psychic phenomenon.
I think I’m just restating the exchange I had with komponisto on this point. Goertzel’s position isn’t that of someone who is doesn’t know any physics or Enlightenment-style rationality. It is clearly a contrarian position which should be treated rather differently since we can assume he is familiar with the reasons why psychic phenomena are ‘well known to be bullshit’. It is a fully generalizable tactic which can be used against all and any contrarian thinkers. Try “Robin Hanson thinks we should cut health care spending 50%, therefore he is less likely to be right about fertility rate.”
It isn’t even evidence until you include a premise about the likelihood of y, which we agree is the implied premise.
This is obviously going to be the case when trying to convince an individual of something. The beliefs (crackpot or otherwise) of the target audience are always going to be relevant to persuasively. As a comment directed in part to the wider lesswrong audience the assumed premises will be different.
Try “Robin Hanson thinks we should cut health care spending 50%, therefore he is less likely to be right about fertility rate.”
If I were a reader who thought Robin’s position on health care was as implausible as belief in magic and thought that making claims about the fertility was similar to AI strategy then I would take this seriously. As it stands the analogy is completely irrelevant.
Ever is a strong word. If a competent expert in a field who has a known tendency to err slightly on the side of too much openness to the cutting edge fails to be convinced by a new finding within his field that says an awful lot.
That is simply not the form of the argument you quote. “Ben Goertzel believes in psychic phenomenon” can not be represented as “I disagree with person x ”.
I’m being generous and giving the original comment credit for an implicit premise. As stated the argument is “Person x believes y, therefore person x is wrong about z.” this is so obviously wrong it makes my head hurt. WrongBot’s point is that someone has to have a poor reasoning capacity to believe in psy. But since he didn’t provide any evidence to that effect it reduces to ‘I disagree with Goertzel about psy’.
Fair point re: “ever”.
I generally don’t try to provide evidence for every single thing I say, and I am especially lax about things that I consider to be incredibly obvious.
But I’m annoyed enough to lay out a very brief summary of why belief in PSI is ludicrous:
It isn’t permitted by known physics.
There are no suggested mechanisms (so far as I’m aware) for PSI which do not contradict proven physical laws.
The most credible studies which claim to demonstrate PSI have tiny effect sizes, and those haven’t been replicated with larger sample sizes.
Publication bias.
PSI researchers often seem to possess motivated cognition.
We’ve analyzed the functioning of individual neurons pretty closely. If there are quantum microtubules or other pseudoscientific nonsense in them, they don’t seem to affect how those individual neurons behave.
Etc.
No one has to give evidence for everything they say but when things that you thought were obviously wrong begin to get defended by physics-literate reductionist materialists that seems like a good time to lower your confidence.
Well to begin with, Goertzel’s paper claims to be such a mechanism. Have you read it? I don’t know if it works or not. Seems unwise to assume it doesn’t though.
Publication bias, motivated cognition and effect size are all concerns and were my previous explanation. I found this meta-analysis upset that view for me.
Oh man! I left out the most important objection!
If PSI exploits weird physics in a complicated manner and produces such tiny effects, where the hell did the mechanism come from? PSI would obviously be a very useful adaptation, so why don’t we see it in other species? Why aren’t the effects stronger, since there’s such a strong evolutionary pressure in favor of them?
Goertzel’s paper also includes psychokinesis as a PSI phenomenon supported by strong evidence. I would love to see the study he’s talking about for that one. Or a video.
All of this is also discussed in Outside the Gates. I can try to dig up what he said this weekend.
The experiments aren’t macroscopic. The results involve statistical deviations from expected normal distributions of say, white noise generators when participants try to will the results in different directions. I don’t think these results are nearly as compelling as other things, see Jahn and Dunne 2005 for example. They had some methodological issues and the one attempt that was made at replication, while positive, wasn’t significant at anywhere near the level of the original.
If you’re actually interested you should consider checking out the book. It is a quick, inexpensive read. Put it this way: I’m not some troll who showed up here to argue about parapsychology. Six months ago I was arguing your position here with someone else and they convinced me to check out the book. I then updated significantly in the direction favoring psi (not enough to say it exists more likely than not, though). Everything you’ve said is exactly what I was saying before. It turns out that there are sound responses to a lot of the obvious objections, making the issue not nearly as clear cut as I thought.
It would be wrong if it were a logical deduction instead of an inference. That is, if WrongBot actually wrote ‘therefore’ or otherwise signaled absolute deductive certainty then he would be mistaken. As is he presents it as evidence, which it in fact is.
There is a clear implied premise ‘psychic phenomenon are well known to be bullshit’. Not all baseline premises must be supported in an argument. Instead, the argument should be considered stronger or weaker depending on how reliable the premises are. I don’t think WrongBot loses too much credibility in this case by dismissing psychic phenomenon.
It isn’t even evidence until you include a premise about the likelihood of y, which we agree is the implied premise.
I think I’m just restating the exchange I had with komponisto on this point. Goertzel’s position isn’t that of someone who is doesn’t know any physics or Enlightenment-style rationality. It is clearly a contrarian position which should be treated rather differently since we can assume he is familiar with the reasons why psychic phenomena are ‘well known to be bullshit’. It is a fully generalizable tactic which can be used against all and any contrarian thinkers. Try “Robin Hanson thinks we should cut health care spending 50%, therefore he is less likely to be right about fertility rate.”
This is obviously going to be the case when trying to convince an individual of something. The beliefs (crackpot or otherwise) of the target audience are always going to be relevant to persuasively. As a comment directed in part to the wider lesswrong audience the assumed premises will be different.
If I were a reader who thought Robin’s position on health care was as implausible as belief in magic and thought that making claims about the fertility was similar to AI strategy then I would take this seriously. As it stands the analogy is completely irrelevant.