Way back in April I put up a post related to the velocity-addition-formula. I deleted most of my entries. You can’t edit a post, only delete and you can’t really delete.
https://groups.google.com/g/sci.physics.relativity/c/O5_0zdWEWAY
In May I put a blog, a Google page like sci/phys.
https://dibdeck.blogspot.com/
Text only. No images audio video, no ads.
On blogspot you can edit update delete. Endless exegesis.
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