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That was the point. That example is meant to demonstrate that the model that trained for 4 hours can imitate a conversation but isn't actually anywhere close to being useful.

Where did you find that?

It's in this screenshot: https://twitter.com/karpathy/status/1977755430093980034

Edit: direct link to image: https://pbs.twimg.com/media/G3Jjxmba8AA5mSs.jpg

Aha, thanks!

not sure why you are being downvoted. That 'explanation' of Rayleigh scattering is just wrong.

Because that explanation is expected to be wrong. This is a partially trained tiny model, Andrej shared that obviously incorrect explanation to emphasize that the model is not trustworthy or useful at that stage.

Downvoted for being obvious in context / missing the point and getting worked up about it. He even said it's like talking to a kindergartener.