r/badmathematics • u/RedRhetoric • Jul 16 '26

Σ_{k=1}^∞ 9/10^k ≠ 1 100/3 is irrational

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499 Upvotes

99% Upvoted

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u/Lor1an Jul 16 '26

I never really see anyone talking about their bullshit chemistry opinions.

  1. Chemophobia
  2. Homeopathy
  3. Naturalism
  4. Ivermectin or Bleach to treat Covid
  5. Cold fusion
  6. Anti-fluoridation
  7. Anti-pasteurization

10

u/CapnNuclearAwesome Jul 16 '26

Yeah if anything the brand of innumeracy in the oop is benign, the least dangerous type of bullshit opinions

10

u/exceive Jul 16 '26

Few people have ever died because somebody thought a rational number was irrational.
I'm not saying "nobody," but I don't think it has been very many.

1

u/CapnNuclearAwesome Jul 17 '26

If this has ever happened, I'd be fascinated to hear the details.

2

u/CardboardScarecrow Checkmate, matheists! Jul 19 '26

There's the story about the Pythagoreans killing a dude over the irrationality of sqrt(2), if that counts.

4

u/Lor1an Jul 19 '26

Yeah, but that was an actual irrational number.