That reminds me of Three Worlds Collide, chapter 5: https://www.lesswrong.com/posts/HawFh7RvDM4RyoJ2d/three-worlds-collide-0-8 https://www.lesswrong.com/posts/

That reminds me of Three Worlds Collide, chapter 5: https://www.lesswrong.com/posts/HawFh7RvDM4RyoJ2d/three-worlds-collide-0-8 https://www.lesswrong.com/posts/HawFh7RvDM4RyoJ2d/three-worl... Humans are comparing notes with a new alien species, and find a huge discrepancy in one of the physical constants. It turns out that scientists had published a fake value, because the information would've allowed anyone to build a superweapon.