[actually_a_dog]

You seem to be assuming that people (as a whole) actually learn from the past and their mistakes. You know the saying, though: "history never repeats itself, but it does often rhyme." We just keep making a lot of the same mistakes as a species, over and over again. :/

[avmich]

We also avoiding some of the past mistakes, so that should qualify. E.g. historically Europe is a rather peaceful continent last few decades.

[Ekaros]

Situation has changed... Still, somehow we did not learn from WW1 to WW2...