2025-10-25 Shared Articles

2025-10-25

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• First Shape Found That Can't Pass Through Itself

  Notes:

  • By "shape" they they mean convex polyhedra
  • "Pass through itself" means passing through a copy (thank you @hackernews::bonoboTP)
  • To pass through itself means that you can bore a hole through the shape without making a cut.

  It's definitely an interesting approach. They defined an algorithm that is a coarse verification (their global theorem), and then defined an algorithm that verifies a shape works with such coarse verification (their local theorem). Then they had to find such a shape that works that way.

• Why /dev/null Is an ACID Compliant Database

• Pipe Logic

  Thank you @hackernews::jihadjihad for sharing

  This just blows my mind, it is so utterly delightful!!!! While the basic analogy (\0 as an electron, generally build up) is clear to me, the details (specifically the .c and .sh files) are a bit beyond me. I will buy a coffee (or a lunch!) for someone to take my to the side and explain it to me.

  Also I was slightly tickled that changes require time to resolve, just like in real circuits.

• Wasp Blower

  I like this comment from @hackernews::genuineresponse.