This is a recap of the top 10 posts on Hacker News on Oct 20, 2025.

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

• (00:00) - Intro

Major AWS Outage Happening
https://old.reddit.com/r/aws/comments/1obd3lx/dynamodb_down_useast1/
https://news.ycombinator.com/item?id=45640772

Doing well in your courses: Andrej's advice for success (2013)
https://cs.stanford.edu/people/karpathy/advice.html
https://news.ycombinator.com/item?id=45635533

Space Elevator
https://neal.fun/space-elevator/
https://news.ycombinator.com/item?id=45640226

Novo Nordisk's Canadian Mistake
https://www.science.org/content/blog-post/novo-nordisk-s-canadian-mistake
https://news.ycombinator.com/item?id=45637744

Airliner hit by possible space debris
https://avbrief.com/united-max-hit-by-falling-object-at-36000-feet/
https://news.ycombinator.com/item?id=45636285

Entire Linux Network stack diagram (2024)
https://zenodo.org/records/14179366
https://news.ycombinator.com/item?id=45639995

DeepSeek OCR
https://github.com/deepseek-ai/DeepSeek-OCR
https://news.ycombinator.com/item?id=45640594

AWS Multiple Services Down in us-east-1
https://health.aws.amazon.com/health/status?ts=20251020
https://news.ycombinator.com/item?id=45640838

Comparing the power consumption of a 30 year old refrigerator to a new one
https://ounapuu.ee/posts/2025/10/14/fridge-power-consumption/
https://news.ycombinator.com/item?id=45577181

Compare Single Board Computers
https://sbc.compare/
https://news.ycombinator.com/item?id=45636365