Recent submissions

Comment · 8 months ago
The situation is clear. There is a great risk to the livelihoods and bargaining power of workers everywhere. This risk is driven by a race dynamic that is accelerating. In tech we can see this earlier than others because we are close to the technology at the heart of this.

This is quickly becoming one of the largests threats to the public in history and the concentration of power of this trajectory threatens democracy. Irreversable shifts in the structure of power are on the table.

Comment · 8 months ago
https://arxiv.org/pdf/1912.02292 "We show that a variety of modern deep learning tasks exhibit a "double-descent" phenomenon where, as we increase model size, performance first gets worse and then gets better." That is the first sentence of the abstract. The first graph shown in the paper backs it up.

Looking into it further, it seems that typical LLMs are in the first descent regime anyway though so my original point is not too relevant for them anyway it seems. Also it looks like the second descent region doesn't always reach a lower loss than the first, it appears to depend on other factors as well.

Comment · 8 months ago
> Literally the 3rd or 4th thing you learn about ML is that for any given problem, there is an ideal model size.

From my understanding this is now outdated. The deep double descent research showed that although past a certain point performance drops as you increase model size, if you keep increasing it there is another threshold where it paradoxically starts improving again. From that point onwards increasing the parameter count only further improves performance.

Comment · 1 year ago
I can somewhat understand people developing AGI, but directly working on superintelligence is on extremely shaky ethical ground. A good proportion of AI researchers and philosophers believe superintelligence stands a significant chance of displacing humanity and it is widely regarded as one of the most, if not the most, dangerous technology yet to be created.

Crazy that this is legal.

Comment · 1 year ago
> OpenAI is consistently the one coming up with new ideas first (GPT 4, o1, 4o-style multimodality, voice chat, DALL-E, …)

As far as I can tell o1 was based on Q-star, which could likely be Quiet-STaR, a CoT RL technique developed at Stanford that OpenAI may have learned about before it got published. Presumably that's why they never used the Q-Star name even though it had garnered mystique and would have been good for building hype. This is just speculation, but since OpenAI haven't published their technique then we can't know if it really was their innovation.

Comment · 4 years ago
The author's example for x^2 + x could be written with the first two symbols swapped. With this it looks fine to me. Putting the 2 first here is like putting the x first in "2x" such that it becomes "x2". I think also maybe if the lines above and below had curved ends so you could see where they start and end clearly then this could be not so bad notation.
Comment · 4 years ago
>When a person "has the concept `7`" they can reason thus: "6 eggs would be fewer", "7 is an odd number", "7 is a whole quantity", "with 7 less of 10, i'd have 3" etc.

I just input this into GPT-3. Its responses are in italics, this is first try no rewriting or retrying anything:

This is a test of understanding of the concept of "the number 7".

Question: Is 7 odd? Answer: Yes, 7 is an odd number.

Question: Is 6 eggs fewer than 7 eggs? Answer: Yes, 6 eggs is fewer than 7 eggs.

Question: With 7 less of 10, what would I have? Answer: I would have 3.

Question: Is 7 a whole quantity? Answer: Yes, 7 is a whole quantity.

This is mostly a joke because I think I understand where you are coming from (and that you are hypothesising that gpt3's responses are an elaborate trick of sorts). But I don't believe AI has to take the same route as human intelligence, and I don't think we really understand what a concept is or how it behaves from a signal/data perspective, but I think that may be inconsequential for creating general AI.

Also people are can be really stupid sometimes and also have failures, and the concepts that people hold can be incorrect or flawed etc. So it may be useful also to compare human failures with AI failures, rather than just AI failures with human successes.

Comment · 4 years ago
I think the failures of people spouting hype and failing to deliver in ML has absolutely nothing to do with the real and immense progress which is happening in the field concurrently. I don't understand how one can look at GPT-3, DALL-E2, alpha go, alpha fold, etc and think hmmm... this is evidence of an AI winter. A balanced reading of the season imo suggests that we are in the brightest AI summer and there is no sign of even autumn coming. At least on the research side of things.
Comment · 4 years ago
The arms race to passing the turing test has begun.
Comment · 4 years ago
Well to my eye it's realism beyond anything that I could find. Mind you I didn't search for that long so there might be something there if I was to delve deeper.

I am pretty familiar with photoshop, and while I'm not an expert, I would find making something like this really difficult. Anything is possible with photoshop, but some things are very hard.

Comment · 4 years ago
Comment · 4 years ago
Human artists also do a whole lot of mimicry. One could look at art produced by many artists and say that it is just things stitched together from pre-existing art.

“Good artists copy, great artists steal.”

Comment · 4 years ago
This is going to be mostly a rant on OpenAI's "safer than thou" approach to safety, but let me start with that I think this technology I think is really cool, amazing, powerful stuff. Dall-E (and Dall-E 2) is an incredible advance over GANs, and no doubt will have many positive applications. It's simply brilliant. I am someone who has been interested in and has followed the progress of ML generated images for nearly a decade. Almost unimaginable progress has been made in the last five years in this field.

Now the rant:

I think if OpenAI genuinely cared about the ethical consequences of the technology, they would realise that any algorithm they release will be replicated in implementation by other people within some short period of time (a year or two). At that point, the cat is out of the bag and there is nothing they can do to prevent abuse. So really all they are doing is delaying abuse, and in no way stopping it.

I think their strong "safety" stance has three functions:

1. Legal protection 2. PR 3. Keeping their researchers' consciences clear

I think number 3 is dangerous because researchers are put under the false belief that their technology can or will be made safe. This way they can continue to harness bright minds that no doubt have ethical leanings to create things that they otherwise wouldn't have.

I think OpenAI are trying to have the cake and eat it too. They are accelerating the development of potentially very destructive algorithms (and profiting from it in the process!), while trying to absolve themselves of the responsibility. Putting bandaids on a tumour is not going to matter in the long run. I'm not necessarily saying that these algorithms will be widely destructive, but they certainly have the potential to be.

The safety approach of OpenAI ultimately boils down to gatekeeping compute power. This is just gatekeeping via capital. Anyone with sufficient money can replicate their models easily and bypass every single one of their safety constraints. Basically they are only preventing poor bad actors, and only for a limited time at that.

These models cannot be made safe as long as they are replicable.

To produce scientific research requires making your results replicable.

Therefore, there is no ability to develop abusable technology in a safe way. As a researcher, you will have blood on your hands if things go wrong.

If you choose to continue research knowing this, that is your decision. But don't pretend that you can make the algorithms safer by sanitizing models.

Comment · 4 years ago
Oh yeah I don't doubt it. I think though that there is many orders of magnitude difference in the field strengths between cell phone radiation and MRI, and this makes all the difference.

THz radiation is a different story too as it has about enough energy such that it could influence irreversible processes.

Comment · 4 years ago
No, the molecular machinery of cells uses energy level differences that are far above the thermal energy level at body temperature, which allows them to actually make changes to things irreversibly. Enzymes are a great example of this.

Try to use microwaves to move ions from one side of a container of salt solution to the other and then get back to me on the ability of microwaves to control ion movement. Hint: you basically can't without obscene levels of radiation. The thermal "pressure" due to the diffusion of ions is enormous.

For a sense of scale, the thermal velocity of water molecules at room temperature is about 500m/s. The drift velocity(average movement of charge carriers, i.e. coherent current) of typical electric currents is on the order of 1mm/s.

Live from the official Hacker News API

A modern reader for Hacker News · SvelteKit + Skeleton