[quote=“914”]In 100 years I believe everyone on earth will have brown hair and brown eyes due to mixed marriages.
Maybe this belongs in the “What I believe is true but can’t prove” thread.[/quote]
You have the theory of evolution by sexual selection backwards. It is excessive inbreeding within the same race that leads to everybody looking alike. Take places like Sweden or Japan, for example. Mixing leads to greater variety, not less. Take dogs, for example - a few thousand years ago, all dogs more or less looked alike. Through selective breeding of dogs of different “races” (breeds), there is now an infinite variety of dog types. There are dog breeds that could not exist ‘naturally’; man’s tampering is what made such ludicrous creatures as the bulldog (some of whose babies’ heads are now so big that natural birth is impossible; bulldog mothers now have to have caesarians) and the schnauzer.
So I predict that in the year 2525 we’ll be seeing people with naturally purple eyes and blue hair and skin like carrots.