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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 (00:17) - Major AWS Outage Happening (01:15) - Doing well in your courses: Andrej's advice for success (2013) (02:23) - Space Elevator (03:28) - Novo Nordisk's Canadian Mistake (04:33) - Airliner hit by possible space debris (05:32) - Entire Linux Network stack diagram (2024) (06:38) - DeepSeek OCR (07:43) - AWS Multiple Services Down in us-east-1 (08:47) - Comparing the power consumption of a 30 year old refrigerator to a new one (09:54) - Compare Single Board Computers (10:52) - Outro Major AWS Outage Happeninghttps://old.reddit.com/r/aws/comments/1obd3lx/dynamodb_down_useast1/https://news.ycombinator.com/item?id=45640772Doing well in your courses: Andrej's advice for success (2013)https://cs.stanford.edu/people/karpathy/advice.htmlhttps://news.ycombinator.com/item?id=45635533Space Elevatorhttps://neal.fun/space-elevator/https://news.ycombinator.com/item?id=45640226Novo Nordisk's Canadian Mistakehttps://www.science.org/content/blog-post/novo-nordisk-s-canadian-mistakehttps://news.ycombinator.com/item?id=45637744Airliner hit by possible space debrishttps://avbrief.com/united-max-hit-by-falling-object-at-36000-feet/https://news.ycombinator.com/item?id=45636285Entire Linux Network stack diagram (2024)https://zenodo.org/records/14179366https://news.ycombinator.com/item?id=45639995DeepSeek OCRhttps://github.com/deepseek-ai/DeepSeek-OCRhttps://news.ycombinator.com/item?id=45640594AWS Multiple Services Down in us-east-1https://health.aws.amazon.com/health/status?ts=20251020https://news.ycombinator.com/item?id=45640838Comparing the power consumption of a 30 year old refrigerator to a new onehttps://ounapuu.ee/posts/2025/10/14/fridge-power-consumption/https://news.ycombinator.com/item?id=45577181Compare Single Board Computershttps://sbc.compare/https://news.ycombinator.com/item?id=45636365 What is Hacker News Highlights? Daily overview of the Top 10 Hacker News posts. Post and comment summarization by AI.