7.18.26 | AWS billing issues, HN support gratitude, Kaiser nurses concerns

This is a recap of the top 10 posts on Hacker News on Jul 18, 2026.

Feel free to leave feedback on Github: https://github.com/denolfe/hacker-news-highlights

• (00:00) - Intro
• (00:20) - AWS: Inaccurate Estimated Billing Data – $1.7 billion
• (01:49) - Thanks HN for 15 years of support and helping me find my life's work
• (03:12) - Kaiser nurses say AI, workplace surveillance are making their jobs, care worse
• (04:31) - First atmosphere found on Earth-like planet in habitable zone of distant star
• (05:59) - The state of open source AI
• (07:31) - Kimi K3, and what we can still learn from the pelican benchmark
• (09:15) - Three ways people respond to a problem (other than solving it)
• (10:37) - Learning a few things about running SQLite
• (11:59) - The Zilog Z80 has turned 50
• (13:08) - FAA lets Boeing sign off on 737 MAX, 787 airworthiness certificates again
• (14:33) - Outro

AWS: Inaccurate Estimated Billing Data – $1.7 billion
https://news.ycombinator.com/item?id=48945241

Thanks HN for 15 years of support and helping me find my life's work
https://news.ycombinator.com/item?id=48949551

Kaiser nurses say AI, workplace surveillance are making their jobs, care worse
https://localnewsmatters.org/2026/07/15/kaiser-nurses-say-ai-workplace-surveillance-are-making-their-jobs-and-patient-care-worse/
https://news.ycombinator.com/item?id=48952880

First atmosphere found on Earth-like planet in habitable zone of distant star
https://www.bbc.com/news/articles/cy4kdd1e0ejo
https://news.ycombinator.com/item?id=48947560

The state of open source AI
https://stateofopensource.ai/
https://news.ycombinator.com/item?id=48947825

Kimi K3, and what we can still learn from the pelican benchmark
https://simonwillison.net/2026/Jul/16/kimi-k3/
https://news.ycombinator.com/item?id=48947717

Three ways people respond to a problem (other than solving it)
https://improvesomething.today/responses-to-problems/
https://news.ycombinator.com/item?id=48947490

Learning a few things about running SQLite
https://jvns.ca/blog/2026/07/17/learning-about-running-sqlite/
https://news.ycombinator.com/item?id=48950122

The Zilog Z80 has turned 50
https://goliath32.com/blog/z80.html
https://news.ycombinator.com/item?id=48951461

FAA lets Boeing sign off on 737 MAX, 787 airworthiness certificates again
https://www.cnbc.com/2026/07/17/faa-boeing-737-max-787.html
https://news.ycombinator.com/item?id=48952439