Weird World Coincidences

Weirdly similar building structures built on seperated cultures

Nearly all cultures having major affronts to (pubesent) pedofilia, despite biologically not really having a purpose.

Most countries using very similar weapons of war, with very little deviation.

Now there are many others that can be explained by human instinct/evolutionary reasons but these 3 always seem the 3 oddest as they really dont fall into the explanatory reasons...

Any thoughts, please be mature on topic 2 especially.

Feel free to add your own.

I'll show you my erection if you show me yours...

Jared Diamond probably disagrees with you in regards to weapons of war.

Originally posted by Henry_Pym

Nearly all cultures having major affronts to (pubesent) pedofilia, despite biologically not really having a purpose.

Heck it's something we deal with today. Remember the soldier who got in trouble for beating the shit out of some middle eastern general who had chained a 10 yr. old boy to his bed for sex?

Damn though I had mostly repressed that knowledge. Now my brain feels like I just poured a bunch of bleach into a hole in my skull.

Originally posted by Surtur
Heck it's something we deal with today. Remember the soldier who got in trouble for beating the shit out of some middle eastern general who had chained a 10 yr. old boy to his bed for sex?

Damn though I had mostly repressed that knowledge. Now my brain feels like I just poured a bunch of bleach into a hole in my skull.

There is a variety of weapons and different weapon styles, it really just depends how you define "similar", like in one way a Gladius is like a Zweihänder ...but also really not. At any rate if you are mainly talking about similarities like swords, or blunt weapons, I think the real explanation is that the purpose of weapons, I.e. Killing people, is achieved most obviously and efficiently with certain very similar designs.