one hundred years ago to suggest that the speed of an object going exactly 30 miles an hour in relation to another object going exactly 30 miles an hour in the opposite direction is less than 60 miles an hour, would have been infinitely laughable, against laws proven as steel (more than concrete), and completely and irrefutably self evident.
the best scientists of that time would easily accepted a bet of their lives against a dollar, as to the absolute falsity of such a statement of lunacy. then of course came einstein.
typical of the history of deep theory in science
remember when there was NO QUESTION, NONE, AT ALL, that the universe revolved around the earth. SELF EVIDENT!
of course today people like you and me are above making such mistakes.
but try to think beyond your little point in time. try to expand your perspective, try not to worship science, think a little more broadly.