What If? (xkcd) personal blog
Everybody Jump
What would happen if everyone on earth stood as close to each other as they could and jumped, everyone landing on the ground at the same instant?
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Linked from 15 Hacker News comments by 15 different people, from Sep 2012 to Jul 2026.
Most recent:
- ninju · Jul 9, 2026
- pchristensen · Jan 30, 2025
- skykooler · Jan 29, 2025
- black_knight · Sep 21, 2022
- MetallicCloud · Oct 1, 2021
- koolba · Jun 29, 2021
