It a funny book about about math errors in real life. An many of those errors are not isolated, they are like several slices of melted Swiss Cheese that are aligned and then is when shit happens as at some point there is line that can cross all holes. The important thing is to learn from mistakes, that are rarely published and make systems more robust (and i would say “simpler”) The errors in the books go from falling bridges, blow up space aircrafts, nearly missed fly accidents, medicines, etc.
Another things, correlation is not causality.