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Henry Bernstein | Henry J. Bernstein | Substack
Mostly Bob Dylan. Click to read Henry Bernstein, by Henry J. Bernstein, a Substack publication with hundreds of subscribers.

Despite hype and optimistic projections, the humanoid robot industry faces hurdles, from battery life and design to limited demand for large-scale deployments (Evan Ackerman/IEEE Spectrum)
https://spectrum.ieee.org/humanoid-robot-scaling

Humanoid Robots: The Scaling Challenge
​It takes more than building a humanoid robot to build a humanoid robot product.

Fossil-fuel firms receive US subsidies worth $31bn each year, study finds #UnitedStates

Crazy scientific instrument idea with probably limited practical use: inverse spectrometer.
Broadband light source (halogen lamp etc), collimating lens, slit, prism, then transmissive LCD to provide selective attenuation at each spectral bin and some kind of focusing optics to combine the resulting light back into a single beam.
Do a bit of calibration for system losses and the light source spectrim and you end up with a device where you can load in a spectrum of an arbitrary lig…

BELGOROD IN DARKNESS! ⚡ Gas Substation Destroyed! #shorts: https://benborges.xyz/2025/10/10/belgorod-in-darkness-gas-substation.html

Ramsey Spectroscopy via Symmetry-Protected Destructive Many-Body Interferometry
Sijie Chen, Jiahao Huang, Min Zhuang, Chaohong Lee
https://arxiv.org/abs/2509.08288 https://

Ramsey Spectroscopy via Symmetry-Protected Destructive Many-Body Interferometry
Ramsey spectroscopy, a fundamental tool in both basic science and practical applications, is inevitably subject to several detrimental effects. % Here we propose a symmetry-protected destructive many-body interferometry (SPDMBI) for Ramsey spectroscopy, which successfully mitigates the spectral shift caused by interparticle interaction, noise, decoherence and experimental imperfection. % Through matching the symmetry of the input states and the Hamiltonian, the SPDMBI-based Ramsey spectroscopy …

3 things that you can do to support someone who is struggling with their mental health, specifically depression:
• Educate Yourself
• Listen to Understand, Not to Change
• Check in Often and Check in WELL
via @rachel_havekost@threads.net
https://rachelhavekost.substack.com…

Three ways to support someone with depression
(From someone who is chronically depressed)

Conditional non-linear stability of Kerr-de Sitter spacetimes in the full subextremal range
Peter Hintz, Oliver Petersen, Andr\'as Vasy
https://arxiv.org/abs/2508.06620 http…

Conditional non-linear stability of Kerr-de Sitter spacetimes in the full subextremal range
We show the stability of Kerr-de Sitter black holes, in the full subextremal range, as solutions of the vacuum Einstein equation with a positive cosmological constant under the assumption that mode stability holds for these spacetimes. The method is similar to the (unconditional) proof in the slowly rotating case by Hintz and Vasy. The key novelties are the implementation of constraint damping in the full subextremal range as well as the verification of a subprincipal symbol condition at the tr…

GPT-5's release was underwhelming, offering incremental improvements and failing to meet expectations, showing that pure scaling simply isn't the path to AGI (Gary Marcus/Marcus on AI)
https://garymarcus.substack.com/p/gpt-5-overdue-overhyped-and-underwhel…

GPT-5: Overdue, overhyped and underwhelming. And that’s not the worst of it.
A new release botched … and a breaking research new paper that spells trouble

Can a Quantum Computer Simulate Nuclear Magnetic Resonance Spectra Better than a Classical One?
Keith R. Fratus, Nicklas Enenkel, Sebastian Zanker, Jan-Michael Reiner, Michael Marthaler, Peter Schmitteckert
https://arxiv.org/abs/2508.06448

Can a Quantum Computer Simulate Nuclear Magnetic Resonance Spectra Better than a Classical One?
The simulation of the spectra measured in nuclear magnetic resonance (NMR) spectroscopy experiments is a computationally non-trivial problem, and as such, it represents a problem for which a quantum computer may provide some practical advantage over traditional computing methods. In order to understand the extent to which such problems may provide examples of useful quantum advantage, it is important to understand the limitations of existing classical simulation methods. In this work, we benchm…