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Comment Sabine Hossenfelder used to have a point (Score 4, Insightful) 201

Back in the days when she just blogged I was a huge fan, because she is a brilliant theoretical physicist and her frustrations with String theory were well founded.

Unfortunately, YouTube warped her. IMHO she completely jumped the gun when she extrapolated from her experience in theoretical physics to all of science. She now claims all of science is failing and this is extremely disingenuous and dangerous rhetoric.

https://ancillary-proxy.atarimworker.io?url=https%3A%2F%2Fwww.mcgill.ca%2Foss%2Farti...

Comment Will the AI crash lead to another AI winter? (Score 1) 238

"... the apparent reasoning prowess of Chain-of-Thought (CoT) is largely a brittle mirage. The findings across task, length, and format generalization experiments converge on a conclusion: CoT is not a mechanism for genuine logical inference but rather a sophisticated form of structured pattern matching."

The latter should really not surprise anyone with a passing understanding of the LLM transformer model. They were never designed for reasoning tasks but for machine translation. But an entire industry has now sprung up trying to shoehorn them into arbitrary business cases, no matter what level of real reasoning, expertise, common sense and judgement is required. I am quite confident in predicting that Sam Altman's quote that "GPT-5 is the first time that it really feels like talking to an expert in any topic, like a PhD-level expert," will live in infamy.

Comment Re:3.5 years left (Score 1) 127

For crying out loud, don't fall for Trump's BS.

Other countries don't pay the tariffs. Americans do. It's a surcharge that the importer i.e. Americans have to pay.

Foreign countries just don't like tariffs because they make their products less competitive. But in essence a tariff is nothing but a tax on foreign goods. And as with all taxes you have to pay them.

The founders incidentally were quite clear on this. Hence they reserved this power for Congress and did not vest it in the presidency.

Comment Physics ignorant summary (Score 5, Informative) 40

Heat is Brownian motion. The news here is that this was accomplished with laser cooling rather than cryogenically.

To quote from the abstract:

Here we use coherent scattering into a Fabry-Perot cavity to cool the megahertz-frequency librational mode of an optically levitated silica nanoparticle from room temperature to its quantum ground state.

This kind of cooling is much less energy intensive and opens up these kind of systems for further experiments and compact technological integration (hence the reference to sensors).

Comment Misleading headline (Score 4, Informative) 5

Psi Quantum has been integrating photonics and electronics on the same chip for quite some time.
https://ancillary-proxy.atarimworker.io?url=https%3A%2F%2Fwww.nature.com%2Farticle...

In fact this paper is referenced in the publication that this article is based on.

The novelty here is not really spelled out in the bu.edu article nor the paper's abstract, but in the intro paragraph of the paper:

To function properly, however, silicon quantum photonic devices, especially micro-resonator based ones like photon-pair sources and filters, require continuous monitoring and control by electronic circuits. To date this has been carried out using bulky off-chip electronics [22], limiting the practically achievable system size and complexity. Realizing the full potential of silicon photonics as a platform for quantum information processing still requires this classical control bottleneck to be resolved.

The paper can be read for free at:
https://ancillary-proxy.atarimworker.io?url=https%3A%2F%2Farxiv.org%2Fhtml%2F2411.05...

Comment Re:Lines aren't frozen. (Score 1) 265

Well, I appreciate that you are trying very hard to make your case, and unfortunately I am too pressed for time to answer more fully, but I just can't let go of the "encircling" argument.

For crying out loud, Russia is the largest country by landmass in the world. Take a look at a map and tell me how the hell you are supposed to ever "encircle" this?!

Also you may want to ask yourself why all those neighbours of Russia scrambled to get under NATO's protection.

To the extend that Russia's NATO fears are real it borders on paranoia. Article 5 requires a member country to be attacked first. The entire structure is geared towards defense. I.e. if a NATO member like Poland wanted to help Ukraine and actively assist Ukraine with troops they'd be on their own, as there is no mechanism to compel other NATO member to come to their aid without invoking Article 5.

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