Hacker News Recap December 25th, 2025 | We invited a man into our home at Christmas and he stayed with us for 45 years
Dec 26, 2025
A personal story about a man who became a long-term houseguest for 45 years raises intriguing social questions. Ruby 4.0 is discussed, featuring performance boosts and enhanced compatibility. A groundbreaking study hints at reversing Alzheimer's symptoms in animals through innovative treatments. An entrepreneur's journey in selling onions online offers valuable e-commerce insights. The controversy around software default settings and their usability is examined. Plus, anticipated speed improvements in Python 3.15 and notable donations to the Free Software Foundation are highlighted.
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Unexpected Long-Term Houseguest
- A guest invited at Christmas became a long-term fixture in the household for 45 years.
- The story prompts reflection on hospitality, boundaries, and evolving relationships.
Ruby 4.0 Targets Performance
- Ruby 4.0 focuses on performance gains like improved garbage collection and hardware compatibility.
- Upgrading may bring speed but raises migration challenges for existing codebases.
Animal Study Shows Alzheimer's Reversal
- A study reports Alzheimer’s reversal in animal models using drugs and lifestyle interventions.
- The community reacts with both cautious optimism and skepticism about human applicability.