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Which valuable quantum chemistry calculations you can do with few 100s of qubits with that low error rates?

The general idea is that with N fault-tolerant qubits, you can find the ground-state energy of an electronic system with N spin orbitals. 100 spin orbitals is the practical upper limit of current computers, so when you get into several hundred qubits, you can start seeing gains.

In some special problems hybrid methods start giving gains in 100 qubits or below.

Gate count estimates for performing quantum chemistry on small quantum computers https://arxiv.org/pdf/1312.1695

A Perspective on Quantum Computing Applications in Quantum Chemistry using 25--100 Logical Qubits https://arxiv.org/pdf/2506.19337


> The diffusion models understand the physics of optics better than our hand-written math.

How well will they do with something like creating two adjacent mirrors with 30 degree angle between them with one of them covered with varying-polarized red tinted checkerboard pattern?


I don't know. Diffusion is weird and a little uneven.

They do a better job of fluid sim than most human efforts to date. And that's just one of thousands of things they do better than our math.


Haha, despite the 1000s of instances where it DOESNT simulate correctly. Very specifically chosen 10000-shot generated videos show somewhat impressive fluid physics... And even then, it MUST be something it's seen before. Diffusion is in NO way modeling physics in a realistic matter, there is not an infinite amount of training data to show all fluid dynamics...

Now I know you're too far down the hype rabbit hole. Either that, or you lack a cursory understanding of diffusion models.


>What's the use case of generating a model if all modelling and game engines are gone?

Because using LL3M-style technique will probably be cheaper and better (fidelity and consistency and art direction wise) than generating the entire video/game with video generation model.


> While we’re on the subject of hex numbers, I may be following this up with a proposal that “H” should mean “times 16 to the power of” in a similar style, but that’ll be for another day.

I like this idea but I think it should be "HE" for hexadecimal exponent.


Panchekha is on a roll lately, I just read all of his recent posts a week ago. I really liked his AI vs Herbie series.


Thanks


I'm a very small time MSE user but indeed such concerns made me reluctant to answer recently or even participate in general. The CC BY-SA requires both Attribution and ShareAlike which doesn't happen. I expect people will move to private silos of information as much as possible.


Yeah but how do you make sure no robots subscribe to the private silos ?

Also, there's always some kind of minimal size required for spaces to be interesting for people to participate. And networks effects.


Legal means mostly and yeah indeed networks effects are the biggest obstacle.


Capitalism is just a reflection of people being self-interested which you can't prevent without being authoritarian which will inevitably leads also to surveillance.


> Capitalism is just a reflection of people being self-interested

I don't think that's the case. I think most people are not self-interested, or at least not in the selfish sense. I think most people are more than willing to sacrifice _some_ direct personal gain for better community gains.

The problem is that capitalism only allows selfish self-interest to flourish, so it incentivises even the more community-oriented people to always put themselves first, a lot of the time even in detriment to their immediate vicinity.

Capitalism is a form of authoritarianism in that it really only serves a few, and everyone else is just constantly fighting for survival.

> being authoritarian which will inevitably leads also to surveillance

That's exactly where capitalism is taking us.


>or at least not in the selfish sense

Wasn't a requirement, self interest doesn't imply malice.

>capitalism only allows selfish self-interest to flourish

How's that then?

>Capitalism is a form of authoritarianism in that it really only serves a few

You're cooked, market liberalisation has led the world from >80% in poverty to <10% in under 40 years, even removing huge entities like China.


Poverty reduction has largely been the result of China’s mixed economy not unbridled capitalism. Guided markets have played a role there - but that’s because they were guided. We don’t have to accept the authoritarianism or any of other effect of markets, simply because markets have played a role in some of the positive outcomes of the past. In fact for the last 50 years in the global north, roughly the same timeframe, productivity has continued to grow but most of that growth has accrued to the wealthiest and relatively little of that benefit has been seen by the median worker.


as I said if you remove china from the data the trend is identical.

But regarding China specifically it has been the gradual transition to a more market led economy.


To say it’s identical is an overstatement, but markets have been part of China’s policy, and part of the policies many other formerly impoverished counties. Without government policy intelligently choosing how to utilize markets (which is what happened in most of these formerly impoverished countries like the “Asian tigers”), markets alone could not have have brought the gains that they did. Markets have many downsides to them as well. Additionally non-government, non-market factors like unionization contributed to the rise out of poverty as well. And in the global north, “markets” have been fairly ineffective at raising the standard of living for the median worker. They have been effective at enriching the already rich however, contributing to wealth power-concentration and de-democratization.


no it is an identical plot on the graph, not an overstatement at all.

The standard of living for the median worker has improved significantly in forty years let alone two hundred, lifestyle inflation is definitely rapid as you would expect with progress, wage growth has outpaced inflation for everyone but public sector workers.

Bad as things may seem now, we are all richer than ever before.


Productivity has grown. But that has more or less stopped going to the median worker since mid-70s (post inflation). This is known as the pay-productivity gap. There has been some increase, but most of the gains have gone to the wealthiest. Our issue today isn’t productivity. It’s redistributing the gains from the wealthy minority who have received the lion’s share to the rest.

And you mention being richer. We also have an unfolding climate crisis, authoritarianism, mass surveillance, and the real possibility of imminent nuclear war (brewing now with China). All these things are the result of a wealthy minority controlling policy for their own interests. And the wealthy minority has gotten there through the same market mechanisms that exploit workers and concentrate wealth. Are we better off when we are much closer to our own self destruction? It’s this wealthy minority that has brought us here. Their relative power continues to grow.

In fact, many of the gains in wealth we have seen are not the result of markets but either savvy government policy or the result of people pushing back on the power of the ruling class. Markets have good and bad sides. It’s best to take off our rose colored glasses and see markets for their good and bad.


IIRC they way they proved you can always solve a cube in 20 moves was essentially a bruteforce (after eliminating symmetries) so this the closest someone have done to full search.


The search was a little easier than that, as we knew how to solve every state in 20 moves, so the problem was proving some move that could be solved in 20 moves couldn't be done quicker in some unusual way. While that still took a while, the fact you knew the start and end limits how many moves you have to search.


Perhaps they should offer a discount for boarding the next train or a price increase for boarding the overcrowded one or even both?


Too difficult to implement - crowds on a busy subway platform are very different from boarding planes at an airport.


No, they claim that a much higher percentage of those killed was civilians then was really was


The fact the IDF panic shot three escaping unarmed barely clothed hostages should make anyone question their statistics here.


And you know this because?


Read this https://publish.obsidian.md/lonerbox/Israel+%26+Palestine/Go... carefully. tl;dr many supposedly "civilian" police force were al-Qassam Brigades members, bringing the alleged 17% combatant rate to around 40%


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