That's certainly how it's been un until now and probably in the near future, but there is nothing apart from history that indicates it will always be in the fut

That's certainly how it's been un until now and probably in the near future, but there is nothing apart from history that indicates it will always be in the future. No physical laws preclude a machine that can operate independently and is more capable than humans at any human activity. If we ever make a machine like that, you won't be able to say that "oh, that's just computer science". Well, of course you could, but you would also have met the original definition of general AI.