natural languages don't come with a design committee. They 'break' or
evolve and basically nobody cares except a few academic pundits.
On this point only...
Natural languages are not always that "natural". Actually, Turkish and
Hebrew are somewhat artificial languages as they have gone through a
major planned revision during the last century. And an "artificial"
language like Esperanto (100 years old this year) has become somewhat
"natural". So, the boudaries are a bit fuzzy.
My 0.00€,
Jérôme.