Worldbuilding without the post-WW/WWII/Cold War glasses (TL, CR etc.)

[Phantasm]

Originally Posted by vicky_molokh

I'm not looking for a particular other made up world, but mostly looking at things that we take for granted, treating as an assumed part of TL6+, but which are actually merely the logical outcomes of certain political events in our world. The stuff that a worldbuilder should 'Unlearn'.

Also, this works in regards to any genre/setting, too. A lot of our fantasy preconceptions - e.g. folks of either gender walking around town wearing armor and having weapons normally restricted to the nobility or city guard/military not only visible but loose in their scabbards and ready to use without fear of repercussions - come from our modern sense of gender equality. Same with the "slavery is evil" bit; prior to the 1800s, slavery was rarely if ever vilified, and in many parts of the world was considered a way of life.