Behind any great product is a dumpster full of mediocre products. The one you see is the result of tiresome work that you often do not see.
It isn’t just that the creators are better than average (though that is probably true too), but rather that they set their goal higher and work harder, longer and with more resolve.
Creating greatness is an inefficient task.
Behind the record breaking four minute mile there were four years of training. No one remembers the first man to run a 4:10 mile. Breaking 4:00 takes four years, but it is remembered for 400.