A4 Paper Is Too Perfect
CGP Grey2 HN recommenders · recommended in 2 months, 2024–2026
explainer · general · evergreen · 2024–2026 on HN
CGP Grey explains the elegant ratio of A4 and the metric paper sizes, then zooms out across scales from the Planck length to the observable universe.
Loved for its zoom-out tour of physical scales and recommended alongside other paper-size and scale-of-the-universe discussions.
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5 comments from Hacker News
Zoom out, too: [CGP Grey - Metric Paper] < ▶ this video > - among my favorite videos Yet even Plancks remain analogue ...
You beat me in posting this (I searched for "CGP," first — you mispelled so I didn't see your comment). ---- My favorite CGP Grey video is Metric Paper... , which explores the vast (but limited) world we live in, from plancs to observable universe. [•] < ▶ this video > Before generative AI videos, this had been what I considered "the most psychedelic experience one can have without doing drugs ." It's still a trip ...
CPG Grey has a video [0] that goes into some, let's just say deeper , detail into metric paper that is well worth a watch if you haven't seen it. 0: ▶ this video
I think this Zoom in/out physics story has pretty widely been told. Here is one by CPG Grey: ▶ this video I like the one OP linked here. All the objects being clickable with a little description is nice
Related CGPGrey video comparing metric paper sizes to comparable objects from the plank scale to the galactic[1]; could have been an XKCD comic [1]: ▶ this video