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Doom crash after 2.5 years of real-world runtime confirmed on real hardware

news.ycombinator.com Unknown 2025-09-22 07:24:23

Post by minki » 2025-09-16 IMG_20250916_224553.jpg (81.99 KiB) Viewed 26683 times Two and a half years ago, I started my now longest real-world software experiment. I had read an article about how DOOMs engine works and noticed how a variable for tracking the demo kept being incremented even after the next demo started. This variable was compared with a second one storing its previous value. The issue here being, each incrementation would cause the variable to slowly get closer to an overflow,

Topics: did game overflow real variable
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Analog optical computer for AI inference and combinatorial optimization

news.ycombinator.com Kalinin 2025-10-05 08:06:14

Experimental set-up The key components of our experimental set-up are shown in Fig. 1a and Extended Data Fig. 1. Optical subsystem The optical subsystem performs matrix–vector multiplication. The basic components are the optical sources (input vector), a system of fan-out optics to project the light onto the modulator matrix and a system of fan-in optics to project the light onto a photodetector array (output vector). The corresponding schematic is shown in Extended Data Fig. 2. The incohere

Topics: 16 aoc instances matrix variables
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Everything is correlated (2014–23)

news.ycombinator.com Hodges 2025-10-31 22:05:53

“Why summaries of research on psychological theories are often uninterpretable”, Meehl (also discussed in Cohen’s paper “The Earth is Round (p < 0.05)”): Problem 6. Crud factor: In the social sciences and arguably in the biological sciences, “everything correlates to some extent with everything else.” This truism, which I have found no competent psychologist disputes given 5 minutes reflection, does not apply to pure experimental studies in which attributes that the subjects bring with them are

Topics: school significant theory variable variables
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Everything Is Correlated

news.ycombinator.com Hodges 2025-11-01 23:05:53

“Why summaries of research on psychological theories are often uninterpretable”, Meehl (also discussed in Cohen’s paper “The Earth is Round (p < 0.05)”): Problem 6. Crud factor: In the social sciences and arguably in the biological sciences, “everything correlates to some extent with everything else.” This truism, which I have found no competent psychologist disputes given 5 minutes reflection, does not apply to pure experimental studies in which attributes that the subjects bring with them are

Topics: school significant theory variable variables
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Sliding Window Technique Visualizer

news.ycombinator.com Unknown 2026-02-12 00:11:40

A fixed-size sliding window maintains a constant size as it moves through the data structure. This is useful for problems like finding the maximum sum of a subarray of size k, or calculating moving averages. Variable Size Window A variable-size sliding window can expand or contract based on certain conditions. This technique is often used when you need to find the optimal subarray that satisfies specific criteria. Common Applications:

Topics: size sliding subarray variable window
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Multi-Stage Programming with Splice Variables

news.ycombinator.com Unknown 2026-02-15 18:45:03

Multi-Stage Programming with Splice Variables This is an interactive demonstration of the ICFP 2025 paper Multi-Stage Programming with Splice Variables by Tsung-Ju Chiang and Ningning Xie. What is multi-stage programming? It's a technique where programs generate other programs. Instead of writing generic code that handles all cases at runtime, you generate specialized, optimized code tailored to specific situations. For example, instead of a power function that uses a loop, you could generate

Topics: code int let variable variables
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