The maiden flight was a failure. My dad was discouraged but kept tinkering. Eventually, he graduated from Berkeley and worked at Lockheed’s super secret skunkworks in Rye Canyon. He worked on the now-outmoded stealth fighter, which crashed in test flight and very nearly killed the pilot.
Eventually, the engineers got it right, and the strike plane was used against Iraq, its radar-evading technology confounded enemies. Tinkering won the day.
Tinkering reminds me of prayer, which people view as a waste of time. True, we Americans are very busy. But time spent with God is never wasted.
Prayer is like research and development, cutting edge change, because you are consulting the all powerful God.