You bet. The problem of getting to orbit was solved "somehow" in 1950's, with emphasis on reliability, then terminal control optimized the result some decades l

You bet. The problem of getting to orbit was solved "somehow" in 1950's, with emphasis on reliability, then terminal control optimized the result some decades later, when the hardware became available... But the basic task is still way below capabilities of even modest modern computers. Space X may afford to have quite a bit of redundancy.