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Image recognition needs no storage or retrieval of data: it's a single pass thru a series of matrix multiplications. Yet, image recognition is the very definition of data processing.

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How do you propose to perform calculations without data storage (think registers)?

Like this for example https://hackaday.com/2019/07/16/neural-network-in-glass-requ... though I'm not sure that you can really count this as calculation. But I guess that's the point of this discussion.

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