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Re:Launch HN: Exa (YC S21) – The web as a database by liam-hinzman on Tuesday May 06, 2025 @04:03PM (#43909064)
I think I found it! Unfortunately we do not include tweets in our search index

> TLDR LLM training runs are significant stress-tests of an overall fault tolerance of a large computing system acting as a biological entity.

https://x.com/karpathy/status/1765424847705047247

Re:Launch HN: Exa (YC S21) – The web as a database by Mockapapella on Tuesday May 06, 2025 @09:27PM (#43911355)
Holy shit I think that might be it! I have been looking for that tweet for like a year now. Thanks!