airplanes do not execute in a vacuum eg: computer. There are external factors that might cause an airplane to fail. A fully working airplane all things equal in terms of weather and a good pilot, will be safe.

you're missing the point. my point was: if everyone waited til something is 100% safe/complete/satisfaction guaranteed, there would be no progress in human civilization. we need to be willing to take a chance on a promising technology in order to allow for further progress. imagine if everyone said i'll wait for planes to be 100% safety guaranteed before i'll get on one - we wouldn't be flying today.