Godwin's law - Wikipedia

An attendee at the 2010 Rally to Restore Sanity and/or Fear wearing a T-shirt implicitly referencing Godwin's Law: "I disagree with you but I'm pretty sure you're not Hitler." Godwin's law (or Godwin's rule), short for Godwin's law of Nazi analogies,[1] is an Internet adage asserting: "As an online discussion grows longer, the probability of a comparison involving Nazis or Hitler approaches 1."[2]

[optical_frog]

知らなんだ――「ゴドウィンの法則」：議論が長びくほど，ナチだのヒトラーだのに相手をなぞらえる確率が 1 に近づいていく．｜パーキンソンのやつとか，英語圏にはいろいろ冗談交じりの格言みたいなのがあるなぁ

[enemyoffreedom]

ゴドウィンの法則