The title is incorrect because the claude demo video does not contain a "copyrighted youtube video". It contains a webgl graphics demo with very similar fractal

The title is incorrect because the claude demo video does not contain a "copyrighted youtube video". It contains a webgl graphics demo with very similar fractal graphics as the author of that tweet made a year ago [0]. In the claude demo the graphics react to mouse position, while the original does not take any input. So my understanding is that at least one of these is likely to be true: A. The code was used in Claude's training B. Claude used browsing and came across the code C. The Anthropic employee who posted that video gave Claude at least a part of that code earlier in the conversation 0: https://www.shadertoy.com/view/mtyGWy https://www.shadertoy.com/view/mtyGWy