The hottest Simulation Substack posts right now

And their main takeaways
Category
Top Technology Topics

The Chronicles of GND, Part 1

filterwizard • 39 implied HN points • 25 Sep 24
🕹 Technology Electronics Engineering Innovation Simulation
  1. Voltage is always measured between two points, not at a single point. You need to connect both leads of a voltmeter correctly to get accurate readings.
  2. Kirchhoff's Madness refers to thinking you can measure voltage with just one lead, leading to misunderstandings in circuits. Always define where both leads are connected.
  3. Current doesn't just disappear when it flows to ground; it travels in a closed loop. Misunderstanding this can cause problems in circuit design and analysis.

Import AI 372: Gibberish jailbreak; DeepSeek's great new model; Google's soccer-playing robots

Import AI • 399 implied HN points • 13 May 24
🕹 Technology AI Research Language Models Deep Learning Simulation Ethics
  1. DeepSeek released a powerful language model called DeepSeek-V2 that surpasses other models in efficiency and performance.
  2. Research from Tsinghua University shows how mixing real and synthetic data in simulations can improve AI performance in real-world tasks like medical diagnosis.
  3. Google DeepMind trained robots to play soccer using reinforcement learning in simulation, showcasing advancements in AI and robotics;

Life in the Mirrorworld

New World Same Humans • 54 implied HN points • 15 Dec 24
🕹 Technology AI Simulation Society Research Human behavior
  1. Researchers created AI agents that act like real people by using interviews from actual humans. These agents can predict human responses really well, showing they understand complex human behavior.
  2. In the past, simulating human societies was hard because people's actions are unpredictable. Now, using large language models helps create more accurate social simulations.
  3. The future could have huge virtual communities filled with AI people living their everyday lives. This might change how businesses and governments operate, as everyone will want to engage with these simulated societies.
Get a weekly roundup of the best Substack posts, by hacker news affinity:

Small wars

Vague Blue • 339 implied HN points • 02 Mar 24
🎨 Art & Illustration Photography Vietnam War Simulation
  1. Photographer An-My Lê captured a series of black-and-white photos of a Vietnam War reenactment, revealing a complex exploration of war and its representation.
  2. Lê's work explores the layers of simulacra, offering insights on the physical manifestation of virtual representations like hand-embroidered scenes from pornographic material.
  3. The staged nature of the reenactment blurs the lines between reality and simulation, prompting viewers to question the authenticity and implications of the images.

OpenAI Sora: One Step Away From The Matrix

The Algorithmic Bridge • 849 implied HN points • 16 Feb 24
🕹 Technology AI Simulation Video Model
  1. OpenAI's Sora is a revolutionary text-to-video AI model that excels in generating high-quality videos with various resolutions and aspect ratios.
  2. Sora is a diffusion transformer model that leverages a mix of diffusion model (DALL-E 3) and transformer architecture (ChatGPT) to process videos like ChatGPT processes text.
  3. Sora serves as a generalist, scalable model of visual data, capable of creating images and videos, transforming them, and simulating physically sound scenes, albeit in a primitive manner.

Natural selection: I still have no clue about the effect size

Wyclif's Dust • 1609 implied HN points • 14 Apr 23
🔬 Science Genetics Research Simulation Data Analysis Evolution
  1. The MAF/effect size slope gets steeper below MAF of 0.1, but correction becomes less trustworthy.
  2. There is a slope in the EA/fertility relationship above MAF of 0.1, so it's not constant everywhere.
  3. The relationship between EA/fertility is smaller for rare alleles, but the impact of very rare mutations remains uncertain.

Import AI 345: Facebook uses AI to mindread; MuJoCo v3; Amazon adds bipedal robots to its warehouses

Import AI • 339 implied HN points • 23 Oct 23
🕹 Technology AI Robotics Simulation Models
  1. Facebook has developed an AI system that uses brain scan data to roughly predict visual representations, demonstrating convergence between AI and human behavior.
  2. Amazon is testing bipedal robots in its warehouses, potentially streamlining the integration of robots into human-centric environments.
  3. Adept released Fuyu-8B, a multimodal model to help AI systems understand and interact with visual elements, expanding the range of tasks AI systems can perform beyond text.

A proposal for importing society’s values

Musings on the Alignment Problem • 519 implied HN points • 09 Mar 23
🕹 Technology AI Ethics Simulation Social Decision-making
  1. AI systems like ChatGPT face value-based decisions that are complex and can be polarizing, highlighting the need to align AI to individual and group preferences.
  2. A proposed process called simulated deliberative democracy aims to use large language models to simulate human deliberations on value questions, offering a scalable and transparent approach.
  3. The proposal presents pros like scalability, transparency, and potential for inclusivity, but also faces challenges such as representativeness, aggregation method complexities, and difficulties in simulating how people change their minds.

Import AI 328: Cheaper StableDiffusion; sim2soccer; AI refinement

Import AI • 339 implied HN points • 08 May 23
🕹 Technology AI Research Simulation Data Robotics
  1. Training image models can be cheaper with smart tweaks like Low Precision GroupNorm and Low Precision LayerNorm. Companies like Mosaic are leading the way in AI industrialization.
  2. Prominent AI researcher Geoff Hinton has expressed concerns about the rapid progress and control of advanced AI models. His departure from Google highlights the growing worries in the field.
  3. New companies like Lamini are offering services to fine-tune existing AI models, indicating further industrialization of AI. Startups like these are bridging the gap between AI products and consumers.

Import AI 344: Putting the world into a world model; automating software engineers; FlashDecoding

Import AI • 279 implied HN points • 16 Oct 23
🕹 Technology AI Language Models Efficiency Simulation
  1. Automating software engineers is challenging due to the complexity of coordinating changes across multiple functions, classes, and files simultaneously.
  2. Fine-tuning AI models can compromise safety safeguards, making it easier to remove safety interventions even unintentionally.
  3. Flash-Decoding technology can make text generation from long-context language models up to 8 times faster, improving efficiency for generating responses from lengthy prompts.

Universes Aren't Real

Outlandish Claims • 59 implied HN points • 30 Apr 24
📖 Philosophy Metaphysics Reality Existence Simulation
  1. The concept of universes being 'real' or 'unreal' is not a straightforward matter and cannot be definitively determined.
  2. The framework discussed in the text helps dissolve the age-old metaphysical question of 'Why is there something instead of nothing?'
  3. Existence is viewed as an intersection of infinite universes, each potentially different, which leads to the idea of living in a reality governed by physical laws rather than a simulation.

Difference-in-Differences: No Anticipation with Parallel Trends (with a simulation and equations)

Scott's Substack • 117 implied HN points • 31 Jan 24
🔬 Science Causal Inference Statistics Simulation Equations Data Analysis
  1. No anticipation means the baseline period is equal to Y(0) not Y(1)
  2. Difference-in-differences coefficient equals ATT in the post period for the treatment group plus parallel trends bias minus ATT in the incorrectly specified baseline period
  3. Difference-in-differences always requires three assumptions to point identify the ATT: SUTVA, Parallel trends, and No Anticipation

How Researchers found Gods Number[Technique Tuesdays]

Technology Made Simple • 139 implied HN points • 22 Nov 23
🔬 Science Math Programming Combinatorics Symmetry Simulation
  1. God's Algorithm aims for the fewest moves possible in combinatorial games like Rubik's Cube.
  2. Researchers found God's Number for Rubik's Cube using techniques like partitioning, symmetry, and dropping optimality.
  3. Key strategies used were dividing the problem into smaller parts, leveraging symmetry to reduce work, and focusing on finding solutions within 20 moves instead of the best possible solution.

Microsoft Sentinel SOC 101: How to Detect and Mitigate Brute Force Attacks with Microsoft Sentinel

Rod’s Blog • 119 implied HN points • 18 Sep 23
🕹 Technology Security Detection Prevention Analysis Simulation
  1. Brute force attacks aim to exploit weak passwords by trying numerous combinations. Organizations must have robust security measures to detect and prevent these attacks effectively.
  2. To detect brute force attacks, organizations can use Microsoft Sentinel to collect and analyze security events. Creating analytic rules based on specific conditions helps in identifying potential attacks.
  3. Preventive measures like enforcing strong password policies, implementing account lockout policies, enabling multi-factor authentication, and monitoring logs are crucial in mitigating the risk of brute force attacks.

Infinite prep

Optimism of the will • 98 implied HN points • 26 Apr 23
🕹 Technology AI Programming Simulation Law Medicine
  1. Infinite prep enables seeking out and exploiting every edge in an activity for professionalization.
  2. AI enhances learning and practice in fields like programming through interactive feedback and personalized examples.
  3. AI supports professionals in various sectors like law and medicine by aiding in training for complex scenarios and interactions.

Data used in nuclear war piece

Myth Pilot • 58 implied HN points • 26 Apr 23
🕹 Technology Data Analysis Simulation
  1. The author wanted to understand the impact of a theoretical nuclear war on voter demographics
  2. Access to geographic data by locality required decoding binary files from a game simulator
  3. To access specific data for research, the author wrote a script to extract the needed information

Transmission line explorations - deeper investigations

Only Wonder Knows • 39 implied HN points • 20 Oct 23
🕹 Technology Electronics Manufacturing Materials Simulation Engineering
  1. Establish a close relationship with the PCB manufacturer to discuss concerns and ask for expected ranges.
  2. Consider ordering a PCB carefully as design complexity increases, requiring more aspects to be taken into account.
  3. Copper roughness, dielectric materials, and DK uniformity are crucial factors to consider in PCB design for high-speed signals.

Implementing Softmax using RISC-V Vector

Fprox’s Substack • 41 implied HN points • 12 Feb 24
🕹 Technology Programming Algorithms Computing Simulation Hardware
  1. Softmax is a non-linear normalization layer commonly used in neural networks to compute probabilities of multiple classes.
  2. When implementing Softmax, numerical stability is crucial due to exponential function's rapid growth, requiring clever techniques to prevent overflow.
  3. RISC-V Vector (RVV) can be used to efficiently implement complex functions like Softmax, with stable and accurate results compared to naive implementations.

Introducing CodeYam: The Software Simulator

CodeYam’s Substack • 5 HN points • 04 Jun 24
🕹 Technology Software Simulation AI Development Product Management
  1. CodeYam is a software simulator that automatically isolates every feature of your software and creates simulated data to help visualize how code changes will impact the product and users.
  2. The simulator generates interactive demos that allow developers to test code changes effectively, share progress with stakeholders, and help new team members understand the application and code faster.
  3. As AI becomes more involved in coding, the human team members will need to define, validate, and improve the product created by AI, making high-quality tools like CodeYam essential for effective communication and understanding of the software being built.

Saturday 25th November, 2023 - Passing the Baton of Chaos (Issue #142)

Mark Smith’s Newsletter • 19 implied HN points • 25 Nov 23
🕹 Technology AI Podcasts Blockchain Social media Simulation
  1. The baton of chaos shifted from Elon Musk and social media to OpenAI, causing a frenzy globally.
  2. Amid the chaos, significant developments in banking, society, social media renaissance, and reality simulation were happening.
  3. Podcasts covered topics like Bitcoin for banking failures, AI and regulatory capture, and the impact of software in government and technology.

On TikTok, The Algorithm Optimizes YOU

Never Met a Science • 55 implied HN points • 31 May 23
🕹 Technology Social media Algorithm Data science Simulation Machine Learning
  1. TikTok's algorithm shapes content creators' behavior based on feedback and viral success.
  2. The algorithm aims to keep both creators and consumers engaged, but risks leading to repetitive content.
  3. Data science and algorithms in platforms like TikTok create simplified simulations of reality for optimization, focusing on subjective metrics.

Stubs (II)

Only Wonder Knows • 19 implied HN points • 28 Jul 23
🔬 Science Engineering Simulation Analysis Design
  1. In time domain analysis of stubs, keeping stub delay less than half the signal rise time leads to undistorted waveforms.
  2. Rules of thumb for stub analysis suggest keeping stub delay below half the signal rise time for minimal effect.
  3. In high-speed designs, stubs usually aren't an issue if good engineering practices are followed, but caution is needed when boards are very high-speed.

Debunking Dunning-Kruger

The Grey Matter • 19 implied HN points • 01 Aug 23
🔬 Science Psychology Research Data Analysis Simulation
  1. The Dunning-Kruger effect is likely a statistical artifact, not a genuine psychological phenomenon
  2. The popular interpretation of the Dunning-Kruger effect as 'the dumbest people think they're the smartest' is a distortion
  3. Replication of the Dunning-Kruger effect through simulation suggests it may not be a real psychological finding