All of dilaudid's Comments + Replies

"The main weakness comes from the fact that almost every single two-bit futurist feels a need to make predictions, almost every single one of which goes for narrative plausibility and thus has massive issues with burdensome details and the conjunction fallacy." - no. The most intelligent and able forecasters are incapable of making predictions (many of them worked in the field of AI). Your argument about updating my probability upwards because I don't understand the future is fascinating. Can you explain why I can't use the precise same argument to say there is a 50% chance that Arizona will be destroyed by a super-bomb on January 1st 2018?

4JoshuaZ
Yes. precisely because they suffer from the biases mentioned. Sure predicting the future is really tough. But it isn't helped by the presence of severe biases. It is important to realize that intelligent doesn't mean one is less likely to be subject to cognitive biases. Nor, does being an expert in a specific area render one immune- look at the classic conjunction fallacy study with the USSR invading Poland. It is true that even taking that into account predicting the future is really hard. But if one looks for signs of the obvious biases then most predictions problems show up immediately. Well, you should move your uncertainty in the direction of 50% probably. But there's no reason to say exactly 50%. That's stupid. Your starting estimate for probability of such an event happening is really small, so the overconfidence adjustment won't be that large and will likely still keep the probability negligible after the adjustment. This isn't like cryonics at all. First, the relevant forecast time for cryonics working is a much longer period and it extends much farther into the future than 2018. That means the uncertainty from prediction the future has a much larger impact. Also, people are actively working on the relevant technologies and have clear motivations to do so. I don't in contrast even know what exactly a "super-bomb" is or why someone would feel a need to use it to destroy Arizona. So the adjustments for predictive uncertainty and general overconfidence should move cryonics a lot closer to 50% than it should for your super-bomb example.

Belief is pretty unambiguous - being sure of (100% probability, like cogito ergo sum), or a strong trust (not nearly 90% probability is not belief). So it seems we are in agreement, you don't believe in it, and neither do most less wrong readers. I agree that based on that argument, whether the probability is 10^-1000 or 75%, is still up for debate.

3JoshuaZ
If that's your definition of belief then it may not be that relevant. If I there's a game where someone roles a pair of fair six-sided dice and will give me five dollars if I can guess their sum, my best strategy is to guess 7 even though I don't by your definition believe that 7 will turn up. In this context this becomes a less than helfpul notation. Also, if this is what you meant, I'm a bit confused by why you brought it up. Many prominent cryonics proponents give estimates well below 90%. So what point were you trying to make?
dilaudid-20

I think only a tiny minority of lesswrong readers, believe in cryopreservation. If people genuinely believed in it then they would not wait until they were dying to preserve themselves, since the cumulative risk of death or serious mental debilitation before cryopreservation would be significant, the consequence is loss of (almost) eternal life, while by early cryopreservation all they have to lose is their current, finite life, in the "unlikely" event that they are not successfully reanimated. If people were actually trying to preserve themselve... (read more)

5JoshuaZ
Humans are not totally rational creatures. There are a lot of people who like the idea of cryonics but never sign up until it is very late. This isn't a sign of a lack of "belief"(although Aris correctly notes below that that term isn't well-defined) but rather a question of people simply going through the necessary effort. Many humans have ugh fields around paperwork, or don't want to send strong weirdness signals, or are worried about extreme negative reactions from their family members. Moreover, there's no such thing as "almost" eternal life. 10^30 is about as far from infinity as 1 is. What does however matter is that there are serious problems with the claim that one would get infinite utility from cryonics. There have been some actually extremely tragic cases involving people with serious terminal illnesse such as cancer having to wait until they died (sometimes with additional brain damage as a result). This is because the cryonics organizations are extremely weak and small. They don't want to risk their situation by being caught up in the American euthanasia debate. This is one of the weakest arguments against cryonics. First of all, some human predictions have been quite accurate. The main weakness comes from the fact that almost every single two-bit futurist feels a need to make predictions, almost every single one of which goes for narrative plausibility and thus has massive issues with burdensome details and the conjunction fallacy. In looking at any specific technology we can examine it in detail and try to make predictions about when it will function. If you actually think that humans really bad at making predictions, then the you shouldn't just say "we simply don't now" instead you should adjust your prediction to be less confident, closer to 50%. This means that if you assign a low probability to cryonics working you should update towards giving it an increased chance of being successful.
4ArisKatsaris
I think you need to define your usage of the term "believe in" slightly better. Belief for what percentages of cryo success rate qualify for "belief in cryopreservation"? If you're talking about percentages over 90% -- indeed I doubt that a significant number of lesswrong readers would have nearly that much certainty in cryo success. But for any percentages below that, your arguments become weak to the point of meaningless -- for at that point it becomes reasonable to use cryopreservation as a last resort, and hope for advancements in technology that'll make cryopreservation surer -- while still insuring yourself in case you end up in a position that you don't have the luxury of waiting any more.

I agree FAI should certainly be able to outclass human scientists in the creation of scientific theories and new technologies. This in itself has great value (at the very least we could spend happy years trying to follow the proofs).

I think my issue is that I think it will be insanely difficult to produce an AI and I do not believe it will produce a utopian "singularity" - where people would actually be happy. The same could be said of the industrial revolution. Regardless, my original post is borked. I concede the point.

Yeah I can see that applies much better to intelligence than to processing speed - one might think that a super-genius intelligence could achieve things that a human intelligence could not. Gladwell's Outliers (embarrassing source) seems to refute this - his analysis seemed to show that IQ in excess of 130 did not contribute to success. Geoffrey Miller hypothesised that intelligence is actually an evolutionary signal of biological fitness - in this case, intellect is simply a sexual display. So my view is that a basic level of intelligence is useful, but excess intelligence is usually wasted.

2Relsqui
I'm sure that's true. The difference is that all that extra intelligence is tied up in a fallible meatsack; an AI, by definition, would not be. That was the flaw in my analogy--comparing apples to apples was not appropriate. It would have been more apt to compare a trowel to a backhoe. We can't easily parallelize among the excess intelligence in all those human brains. An AI (of the type I presume singulatarians predict) could know more information and process it more quickly than any human or group of humans, regardless of how intelligent those humans were. So, yes, I don't doubt that there's tons of wasted human intelligence, but I find that unrelated to the question of AI. I'm working from the assumption that folks who want FAI expect it to calculate, discover, and reason things which humans alone wouldn't be able to accomplish for hundreds or thousands of years, and which benefit humanity. If that's not the case I'll have to rethink this. :)

To directly address your point - what I mean is if you have 1 computer that you never use, with 200MHz processor, I'd think twice about buying a 1.6GHz computer, especially if the 200MHz machine is suffering from depression due to it's feeling of low status and worthlessness.

I probably stole from The Economist too.

0Relsqui
That depends on what you're trying to accomplish. If you're not using your 200MHz machine because the things you want to work on require at least a gig of processing power, buying the new one might be very productive indeed. This doesn't mean you can't find a good purpose for your existing one, but if your needs are beyond its abilities, it's reasonable to pursue additional resources.

Yes - thank you for the cite.

dilaudid200

There is already a vast surplus of unused intelligence in the human race, so working on generalized AI is a waste of time (90%)

Edit: "waste of time" is careless, wrong and a bit rude. I just mean a working generalized AI would not make a major positive impact on humankind's well-being. The research would be fun, so it's not wasted time. Level of disagreement should be higher too - say ~95%.

Relsqui130

I have eight computers here with 200 MHz processors and 256MB of RAM each. Thus, it would not benefit me to acquire a computer with a 1.6GHz processor and 2GB of RAM.

(I agree with your premise, but not your conclusion.)

5Richard_Kennaway
Did you have this in mind? Cognitive Surplus.

Yes - this is exactly the point I was about to make. Another way of putting it is that an argument from authority is not going to cut mustard in a dialog (i.e. in a scientific paper, you will be laughed at if your evidence for a theory is another scientist's say so) but as a personal heuristic it can work extremely well. While people sometimes "don't notice" the 900 pound gorilla in the room (the Catholic sex abuse scandal being a nice example), 99% of the things that I hear this argument used for turn out to be total tosh (e.g. Santill's Roswell Alien Autopsy film, Rhine's ESP experiments). As Feynman probably didn't say, "Keep an open mind, but not so open that your brains fall out".

jhuffman's point made me think of the following devil's advocacy: If someone is very confident of cryonics, say more than 99% confident, then they should have themselves preserved before death. They should really have themselves preserved immediately - otherwise there is a higher risk that they will die in a way that causes the destruction of their mind, than there is that cryonics will fail. The amount that they will be willing to pay would also be irrelevant - they won't need the money until after they are preserved. I appreciate that there are probably ... (read more)

2jhuffman
I don't think anyone is that confident...at least I hope that they are not. Even if cryonics itself works there are so many other reasons revival would never happen; I outlined them near the bottom of the thread related to my original reply to this post already so I won't do so again. Suffice it to say, even if you had 100% confidence in both cryonics and future revival technology, you cannot have nearly 100% confidence in actually being revived. But if you are young and healthy and want to be preserved intact you can probably figure out how to do it; but it is risky and you need to take precautions which I don't know the least thing about... The last thing you want is to end up under a scalpel on a medical examiner's table, which is what often happens to people who die suddenly or violently.
dilaudid-40

I think I disagree with the fundamental premise of this post - that "evidence" is a basis for survival of memes. I think that memes survive because they are useful, fun or interesting. Religion may not have a strong basis in hard direct evidence, but it does seem to explain a lot of things that science fails at - Why does the universe exist? Why am I here? What should I do? How can I get along with people? How can I make the world a better place? To non-specialists these might be thought of as more important questions than what tiny pieces of mat... (read more)

3RobinZ
Ooh, a challenge? Bring it on! Is better performed from a basis of rationality (what does the evidence suggest will work?). Very little evidence that religious people are more self-improved than secularists. Even granting the premise that religion grants better strength than secular substitutes (which is not proven), religion introduces possible attack vector in form of refutation of underlying beliefs. Have that anyway. More to the point, religions discourage belief in others when those others are acting contrary to the memeplex. In practice, this might be true - in theory, a secularist can allocate resources more efficiently on the basis of need rather than ideology. You're joking, right? Look, this list reads like a Dark-Side cached thought about antitheists: "You're attacking irrelevancies! Look at all the great things you're ignoring!" As such, it is boring, and I don't want to read it.
2Morendil
At least one of these categories brings "evidence" back in.

That's what I would do. If one person is almost certain (say 1/(10^10^10)) then the strength of their view would be represented. Of course if anyone gives an irrationally low or high answer, or puts <=0 or >=1, then it overweights their views/blows up.

dilaudid360

Komponisto makes a strange assertion. The prior is not the reference that "someone would commit murder" - there is a body. A more appropriate prior is "someone who lives with someone who was murdered committed that murder" - I'm guessing that base probability is of the order of 0.1. Once we take into account that AK and MK aren't in a relationship, AK is female, and there is very strong evidence that someone else committed the murder then I'd agree that the probability drops, but these pieces of evidence don't cancel out leaving us with... (read more)

4brazil84
I think this is a good point, but I would go one step further. Because there was more than one crime committed. In addition to a murder, somebody tried to stage a burglary. Common sense says that whoever staged the burglary was also involved in the murder but it's still 2 separate crimes. It seems to me that the prior probability that the person who staged the burglary is someone closely associated with Kercher, such as a roommate, is actually pretty high. A close associate would have a strong incentive to try to make the police think that a stranger committed the crime. Whereas a stranger or remote acquaintance would have little or no incentive to do so.

Horrible. If you can get access to it - use Betfair. It's probably blocked in the states though.

dilaudid-20

I'd be careful about generalising from the south of Italy (Sicily) to the north - there's a famous division between the two parts of the country, to the extent that many believe in formally splitting the country. And I'm certainly not interested in which system is superior, American or Italian - the answer is clearly Canadian.

What I think is interesting about this is that the decision comes down to whose judgement you trust least:

  • My judgement is clouded by lack of access to evidence and a lack of access to unbiased evidence. I feel I am unbiased because

... (read more)

I've looked at this twice - first after reading the friends of amanda blog, wikipedia, and scanning the justice for meredith blog.

My initial probabilities were: P(AK=guilty) = .55, P(RS=guilty)=.5, P(RG=guilty)=.999, P(views coincide)=.5. Having read a few comments I initially revised the first two probabilities down - I realised I was guilty of having given a lot of weight to the rape story, and not given weight to the improbability of the "weird sex" story.

Having read more I find it hard to be sure of anything - it seems to be next to impossibl... (read more)

2jefftk
Those are very high probabilities.
4gwern
Keep in mind, this bias may not be entirely unjustified. The guilty blog quotes a major Italian newspaper (it says) which itself jokes about the Italian's system 'near biblical' slowness and forthrightly admits that it is the target of much legitimate criticism. And then there's the general black market economy of Italy, tax evasion, and dispect for the law. The Maxi Trial is an interesting example, without so far as I know, any American analogue: (My apologies for the lengthy quoting, but does this sound like a peaceful highly law-abiding nation, with an effective and uncorrupt judicature?)