So sign language developed independently in a bunch of places. As an example, even though their native signers share a spoken language British Sign language and American Sign language aren't mutually intelligible; ASL was based on French sign language. I've studied a solid bit of a sign language used as a trading…

Eh, this line of thought is similar to people from the last few decades arguing that Euros/Americans lack culpability regarding blood diamonds because the stones are all mined by African warlords while at the same time ignoring that without the commercial systems of and heavy demand from the West the trade itself…

'I don't understand the simple Latin words that I use in sentences to sound smart, call women 'females', misunderstand how ellipses work, and also have the same psychological knowledge of women as a red piller.' - man who says he's been married 30 years and, if not lying, is amusingly blind