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This was also food for whiteboards in the show silicon valley. Compare: https://github.com/leandromoreira/digital_video_introduction...

Those don't really seem similar. Diagrams with boxes and arrows aren't uncommon.

"Q" = Quantizer, "EC" = Entropy Coding, etc. It's definitely similar if you look closer.

"LZW" -> Lempel–Ziv–Welch on the entropy codes doesn't really make sense though (maybe that's why the word "stupid" is next to it).