This is not going to be a popular post here, but I wanted to articulate precisely why I have a very low pDoom (2-20%) compared to most people on LessWrong.
Every argument I am aware of for pDoom fits into one of two categories: bad or weak.
Bad arguments make a long list of claims, most of which have no evidence and some of which are obviously wrong. Examples include A List of Lethalities, which is almost the canonical example. There is no attempt to organize the list into a single logical argument, and it is built on many assumptions (analogies to human evolution, assumption of fast takeoff, ai opaqueness) which are in conflict with reality.
Weak arguments go like this: "AGI will be powerful. Powerful systems can do unpredictable things. Therefore AGI could doom us all." Examples of these arguments include each of the arguments on this list.
So the line of reasoning I follow is something like this;
- I start with a very low prior of AGI doom (for the purpose of this discussion, assume I defer to consensus).
- I then completely ignore the bad arguments,
- finally, I give 1 bit of evidence collectively for the weak arguments (I don't consider them independent, most are just rephrasing the example argument)
So even if I assume no one betting on Manifold has ever heard of the argument "AGI might be bad actually", I only get from 13% -> 30% with that additional bit of evidence.
In the comments: if you wish to convince me, please propose arguments that are neither bad nor weak. Please do not argue that I am using the wrong base-rate or that the examples that I have already given are neither bad nor weak.
EDIT:
There seems to be a lot of confusion about this, so I thought I should clarify what I mean by a "strong good argument"
Suppose you have a strongly-held opinion, and that opinion disagrees from the expert-consensus (in this case, the Manifold market or expert surveys showing that most AI experts predict a low probability of AGI killing us all). If you want to convince me to share your beliefs, you should have a strong good argument for why I should change my beliefs.
A strong good argument has the following properties:
- it is logically simple (can be stated in a sentence or two)
- This is important, because the longer your argument, the more details that have to be true, and the more likely that you have made a mistake. Outside the realm of pure-mathematics, it is rare for an argument that chains together multiple "therefore"s to not get swamped by the fact that
- Each of the claims in the argument is either self-evidently true, or backed by evidence.
- example of a claim that is self-evidently true would be: if AGI exists, it will be made out of atoms
- example of a claim that is not self-evidently true: if AGI exists, it will not share any human values
To give an example completely unrelated to AGI. The expert consensus is that nuclear power is more expensive to build and maintain than solar power.
However, I believe this consensus is wrong because: The cost of nuclear power is artificially inflated by the regulation which mandates nuclear be "as safe as possible", thereby guaranteeing that nuclear power can never be cheaper than other forms of power (which do not face similar mandates).
Notice that even if you disagree with my conclusion, we can now have a discussion about evidence. You might ask, for example "what fraction of nuclear power's cost is driven by regulation?" "Are there any countries that have built nuclear power for less than the prevailing cost in the USA?" "What is an acceptable level of safety for nuclear power plants?"
I should also probably clarify why I consider "long lists" bad arguments (and ignore them completely).
If you have 1 argument, it's easy for me to examine the argument on it's merits so I can decide whether it's valid/backed by evidence/etc.
If you have 100 arguments, the easiest thing for me to do is to ignore them completely and come up with 100 arguments for the opposite point. Humans are incredibly prone to cherry-picking and only noticing arguments that support their point of view. I have absolutely no reason to believe that you the reader have somehow avoided all this and done a proper average over all possible arguments. The correct way to do such an average is to survey a large number of experts or use a prediction market, not whatever method you have settled upon.
As an aside, most arguments for almost anything are bad or weak, whether the conclusion is true/real or not. Science, politics, economics, really any field where there's room for uncertainty and a lot of people interested in the answer. As such, this is not strong evidence in and of itself. One sufficiently strong argument can outweigh all the bad ones. At least in terms of logical evidence. There are many, many, many people who understand your points about nuclear power, for example, but they have been unable to sway political processes for the past few decades and the bad arguments to the contrary are still bandied about constantly. I do think the theoretical minimum price of solar is lower than nuclear for a given level of safety and reliability, though.
That said: I think you'll find there's a lot more people with similar estimates of p(doom) here than you are expecting. I'm one of them. I also think the appropriate reaction to "I believe there's a 2-20% chance that anyone born today will see human extinction before they turn 25" is not to say that number is low, but to say, "We need to mobilize the entire planet as though for total war, if that would help, in order to make sure that doesn't happen."
I do think completely ignoring long lists is a mistake, especially when it's something like the list of lethalities. When you're dealing with extinction-level events, we don't get to be wrong even once. We don't get to overlook even one plausible case. We must be prepared to to avoid extinction in every instance that might lead to it.
To be clear, that last paragraph is a summary of the argument that I find most convincing. I consider the following to each be self-evident.
- The human brain was coughed up by natural selection which was only weakly selecting for intelligence in the able-to-shape-the-world sense. It runs at about 100Hz on about 20 watts of glucose and communicates with the outside world with sensory and motor channels that provide kB/s to several MB/s range bandwidths at best.
- The above is as true for Einstein and von Neuman as anyone else. Given the limits of natural selecti
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