# Understanding PyTorch Buffers

- [understanding-buffers.ipynb](understanding-buffers.ipynb) explains the idea behind PyTorch buffers, which are used to implement the causal attention mechanism in chapter 3


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Below is a video tutorial of me explaining walking through the code:

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[![Link to the video](https://img.youtube.com/vi/PetlIokI9Ao/0.jpg)](https://www.youtube.com/watch?v=PetlIokI9Ao)