For years, scientists like Denker, tried to discover magnetrons and raders. They made sure that there were no mistakes at all. For a long time, the scientists couldn’t find ANYTHING. Then, Percy Spencer found the microwave by accident. The scientists found this out, then threw some errors onto the experiment, trying to discover something that they didn’t when every detail was perfect. In the end, the scientists found the magnetrons and raders from their mistakes.
In conclusion, I believe that failures doesn’t mean no discovery. The effort and amount of work you put into something means more than having something being perfect. “Error is a hardy plant; it flourisheth in every soil.” -19th century English writer Martin Farquhar Tupper “The aim of science is to seek the simplest explanations of complex facts. We are apt to fall into the error of thinking that the facts are simple because simplicity is the goal of our quest. The guiding motto in the life of every natural philosopher should be, Seek simplicity and distrust it.” -20th century philosopher Alfred North