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In the video, I discussed the evolution of storage from naive implementations to optimized B plus trees in databases. I explained the need for using B plus trees, how table data is stored in them, and how the tree is serialized and stored on disk. I also introduced a system design course I offer. I highlighted the limitations of naive data storage methods like linear scans and explained how B plus trees solve efficiency issues in insertions, updates, finds, deletes, and range queries by organizing data into nodes on disk.

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