What would the average skin tone and facial features look like after 300 years if every partner relationship was interracial until there were no other ethnicities? Just a hodgepodge of DNA. What would the average human look like having a little bit of everything in them?
I just think the idea is neat is all.
Do we have any current examples of a human with more than 4 or so distinct racial backgrounds? Like white and black grandparents with a mixed child with another Asian and middle eastern grandparents also having a mixed child. Then those children having a kid of their own.