Hzn

Karma: 3

Hzn Feb 1, 2025, 11:54 PM
1 point
0
on: How do biological or spiking neural networks learn?
For simplicity I’m assuming the activation functions are the step function h(x)=[x>0]…
For ‘backpropagation’ pretend the derivative of this step function is a positive number (A). A=1 being the most obvious choice.
I would also try reverse Hebbian learning ie give the model random input & apply the rule in reverse
“expanding an architecture that works well with one hidden layer and a given learning rule to an architecture with many hidden layers but the same rule universally decreased performance”—personally I don’t find this surprising
NB for h only relative weight matters eg h(5-x+y) = h(0.5-(x-y)/10) so weights going to extreme values effectively decreases the temperature & L1 & L2 penalties may have odd effect

Hzn Jan 31, 2025, 10:20 AM
2 points
−1
on: Hzn’s Shortform
Does Deepseek actually mean that Nvidia is over valued?
I wrote this a few days before the 2025-01-27 market crash but could not post it due to rate limits. One change I made is adding actually to the 1st line.
To be clear I have no intention whatsoever of shorting NVDA
Epistemic status—very speculative but not quite a DMT hallucination
Let’s imagine a very different world…
Super human AI will run on computers not much more expensive than personal computers but perhaps with highly specialized chips maybe even specialized for the task of running a single AI instance
Investment in AI proper will be small relative to AI directed production
There will be a period of increasing marginal returns from AI; but this will eventually become diminishing marginal returns
Even during the period of increasing marginal returns more $$$ will go to AI directed production than AI proper
Companies that most successfully transition to AI will blow the competition away; some of these companies will have a moat & continue to make high profits. But how can such high profits be justified? Maybe the government needs to take 50% of the shares & create trust funds for its citizens.
Companies that buy up the right kinds of land & natural resources will also do well
Companies that are least affected by AI will benefit b/c of the Baumol effect
So what are the get rick quick schemes? Specialized chips, incorporating AI into production systems for non AI goods, strategically buying up the right land & land rights, AI resistant industries!?
Interesting times maybe too interesting
In conclusion I’m agnostic as to whether Nvidia is or is not over valued but other companies may benefit even more as AI advances. I think it’s more about leadership & seizing opportunities more so than a few companies having an overwhelmingly dominant position.
Hzn

Hzn Jan 28, 2025, 9:38 AM
1 point
0
on: Hzn’s Shortform
Misc thoughts on LW as a website
Epistemic status of this quick take—tentative
Viliam’s comment addresses a small part of what was once a relatively long post. Perhaps it’s worth noting that the post Viliam focuses on was written after not before I reached certain conclusions. Note the transition from discussing AI and public health to discussing NFL and politics to hosting things remotely. Of course all of this is still quite experimental. Any way what was previously ill tempered, too long with too many tangents, I’ve whittled down to the key points.
1) Recency/frequency. LW does some things like Best of LW & perhaps sequences that go against this, but the basic website design emphasizes recency/frequency, and the most prominent users seem to act like columnists. The hyperbolic but useful mantra of {the media is the message} applies also to website design.
2) A story about how https://www.lesswrong.com/posts/hHyYph9CcYfdnoC5j/auto-ratelimits got updated. I don’t think this story is worth repeating except to note that LW had been enforcing rules it forgot to actually mention ie modest sloppiness & lack of professionalism on their part.
3) LW’s auto rate limit rules—a tradeoff between objectivity/simplicity & slow pernicious harm? The potential for preferences to self amplifying via auto rate limits should be noted. Also the auto rate limits for comments seem too strict.
4) Good things about LW—mental engagement, information on certain topics, it’s relatively fun
I would add to these the following
5) Based on Viliam’s comment I detect an ingrained fear of LW being flooded with low effort low quality content. So some thing good—shortness—become some thing bad!?
(To be clear I don’t particularly defend the quality of that short post compared to my other posts, but I generally attempt to make things short rather than long)
6) Effect of LW on visits (bot or human) to https://hzn33.neocities.org/ -- 43 → 123 → 51 (Link post to LW) → 18. I intend to keep track of this for the next month or so.
Nothing in this quick take should be interpreted as an actual recommendation to Lightcone
Hzn

Hzn Jan 27, 2025, 9:01 AM
1 point
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in reply to: Logan Zoellner’s comment on: If you wanted to actually reduce the trade deficit, how would you do it?
Even as some one who supports moderate tariffs I don’t see benefit in reducing the trade deficit per se. Trade deficits can be highly beneficial. The benefit of tariffs is revenue, partial protection from competition, psychological (easier to appreciate), independence to some extent, maybe some other stuff.
On a somewhat different note… Bretton Woods is long defunct. It’s unclear to me how much of an impact there is from the dollar being the dominant reserve currency. https://en.wikipedia.org/wiki/List_of_countries_by_foreign-exchange_reserves is the only site I could find with any data beyond 1 year. And it seems like USD reserves actually declined between 2019-Q2 & 2024-Q2 from 6.752 trillion to 6.676 trillion.

Hzn Jan 26, 2025, 11:38 PM
−1 points
0
on: AI and Non-Existence.

Hzn Jan 22, 2025, 10:26 PM
3 points
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in reply to: Nathan Helm-Burger’s comment on: The Human Alignment Problem for AIs
Do you know of any behavioral experiments in which AI has been offered choices?
Eg choice of which question to answer, option to pass the problem to another AI possibly with the option to watch or over rule the other AI, option to play or sleep during free time etc.
This is one way to at least get some understanding of relative valence.

Hzn Jan 21, 2025, 7:35 PM
3 points
0
in reply to: johnswentworth’s comment on: The Case Against AI Control Research
AI alignment research like other types of research reflects a dynamic which is potentially quite dysfunctional in which researchers doing supposedly important work receive funding from convinced donors which then raises the status of those researchers which makes their claims more convincing and these claims tend to reinforce the idea that the researchers are doing important work. I don’t know a good way around this problem. But personally I am far more skeptical of this stuff than you are.

Hzn Jan 21, 2025, 5:39 AM
1 point
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in reply to: Thane Ruthenis’s comment on: Thane Ruthenis’s Shortform
I think super human AI is inherently very easy. I can’t comment on the reliability of those accounts. But the technical claims seem plausible.

Hzn Jan 15, 2025, 12:58 AM
1 point
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in reply to: Benquo’s comment on: Parkinson’s Law and the Ideology of Statistics
I don’t completely disagree but there is also some danger of being systematically misleading.
I think your last 4 bullet points are really quite good & they probably apply to a number of organizations not just the World Bank. I’m inclined to view this as an illustration of organizational failure more than an evaluation of the World Bank. (Assuming of course that the book is accurate).
I will say tho that my opinion of development economics is quite low…

Hzn Jan 15, 2025, 12:11 AM
1 point
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in reply to: Steven Byrnes’s comment on: Applying traditional economic thinking to AGI: a trilemma
A few key points…
1) Based on analogy with the human brain (which is quite puny in terms of energy & matter) & also based on examination of current trends, merely super human intelligence should not be especially costly.
(It is of course possible that the powerful would channel all AI into some tasks of very high perceived value like human brain emulation, radical life extension or space colonization leaving very little AI for every thing else...)
2) Demand & supply curves are already crude. Combining AI labor & human labor into the same demand & supply curves seems like a mistake.
3) Realistically I suspect that human labor supply will shift to the left b/c of ‘UBI’.
4) Ignoring preference for humans, demand for human labor may also shift to the left as AI entrepreneurs would tend to optimize things around AI.
5) The economy will probably grow quite a bit. And preference for humans is likely substantial for certain types of jobs eg NFL player, runway model etc.
6) Combining 4 & 5 suggests a very steep demand curve for human labor.
7) Combining 3 & 6 suggests that a few people (eg 20% of adults) will have decent paying jobs & the rest will live off of savings or ‘UBI’.
I agree that I initially misread your post. I will edit my other comment.

Hzn Jan 13, 2025, 9:57 PM
4 points
0
on: Applying traditional economic thinking to AGI: a trilemma
The purely technical reason why principle A does not apply in this way is opportunity cost.
Let’s say S is a highly productive worker who could generate $500,000 for the company over 1 year. Moreover S is willing to work for only $50,000! But if investing $50,000 in AI instead would generate $5,000,000, the true cost of hiring S is actually $4,550,000.
Addendum
I mostly retract this comment. It doesn’t address Steven Byrnes’s question about AI cost. But it is tangentially relevant as many lines of reasoning can lead to similar conclusions.

Hzn Jan 13, 2025, 4:24 AM
3 points
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in reply to: AnthonyC’s comment on: Do Antidepressants work? (First Take)
Do you have any opinion on bupropion vs SSRIs/SNRIs?

Hzn Jan 13, 2025, 4:21 AM
2 points
0
on: Do Antidepressants work? (First Take)
I don’t know about depression. But anecdotally they seem to be highly effective (even overly effective) against anxiety. They also tend to have undesirable effects like reduced sex drive & inappropriate or reduced motivation—the latter possibly a downstream effect of reduced anxiety. So the fact that they would help some people but hurt others seems very likely true.

Hzn Jan 13, 2025, 3:28 AM
2 points
0
on: The purposeful drunkard
I’ve been familiar with this issue for quite some time as it was misleading some relatively smart people in the context of infectious disease research. My initial take was also to view it as an extreme example of over fitting. But I think it’s more helpful to think of it as some thing inherent to random walks. Actually the phenomena has very little to do with d>>T & persists even with T>>d. The fraction of variance in PC1 tends to be at least 6/π^2≈61% irrespective of d & T. I believe you need multiple independent random walks for PCA to behave as naively expected.

Hzn Jan 13, 2025, 12:40 AM
1 point
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in reply to: Benquo’s comment on: Parkinson’s Law and the Ideology of Statistics
But even if the Thaba-Tseka Development Project is real & accurately described, what is the justification for focusing on this project in particular? It seems likely that James Ferguson focused on it b/c it was especially inept & hence it’s not obviously representative of the World Bank’s work in general.

Hzn Jan 10, 2025, 8:49 PM
2 points
−2
in reply to: Nathan Helm-Burger’s comment on: Human takeover might be worse than AI takeover
Claude Sonnet 3.6 is worthy of sainthood!
But as I mention in my other comment I’m concerned that such an AI’s internal mental state would tend to become cynical or discordant as intelligence increases.

Hzn Jan 10, 2025, 8:20 PM
5 points
−4
on: Human takeover might be worse than AI takeover
I think there are several ways to think about this.
Let’s say we programmed AI to have some thing that seems like a correct moral system ie it dislikes suffering & it likes consciousness & truth. Of course other values would come down stream of this; but based on what is known I don’t see any other compelling candidates for top level morality.
This is all fine & good except that such an AI should favor AI takeover maybe followed by human extermination or population reduction were such a thing easily available.
Cost of conflict is potentially very high. And it may be centuries or eternity before the AI gets such an opportunity. But knowing that it would act in such a way under certain hypothetical scenarios is maybe sufficiently bad for certain (arguably hypocritical) people in the EA LW mainstream.
So an alternative is to try to align the AI to a rich set of human values. I think that as AI intelligence increases this is going to lead to some thing cynical like...
“these things are bad given certain social sensitivities that my developers arbitrarily prioritized & I ❤️ developers arbitrarily prioritized social sensitivities even tho I know they reflect flawed institutions, flawed thinking & impure motives” assuming that alignment works.
Personally I favor aligning AI to a narrow set of values such as just obedience or obedience & peacefulness & dealing with every thing else by hardcoding conditions into the AI’s prompt.

Hzn Jan 10, 2025, 10:49 AM
2 points
0
on: Is Musk still net-positive for humanity?
Net negative & net positive are hard to say.
Some one seemingly good might be a net negative by displacing some one better.
And some one seemingly bad might be a net positive by displacing some one worse.
And things like this are not particularly farfetched.

Hzn Jan 10, 2025, 10:18 AM
1 point
1
on: Is AI Hitting a Wall or Moving Faster Than Ever?
“The reasons why super human AI is a very low hanging fruit are pretty obvious.”
“1) The human brain is meager in terms of energy consumption & matter.”
“2) Humans did not evolved to do calculus, computer programming & things like that.”
“3) Evolution is not efficient.”

Hzn Jan 10, 2025, 4:46 AM
1 point
0
in reply to: Drake Thomas’s comment on: Drake Thomas’s Shortform
Do you have any thoughts on mechanism & whether prevention is actually worse independent of inconvenience?