"In a previous life I wrote the software that controlled my physics experiments. That software had to deal with all kinds of possible failures in equipment. That is probably where I learned to rely on multiple safety nets inside and around my systems"

This quote by Wietse Venema speaks with the value of having several safety nets in location when handling complex systems. Venema is referring to his experience composing software for his physics experiments, which had to be able to manage any prospective failures in the equipment. This experience taught him the significance of having numerous safeguard in place to protect the system from any possible issues. By having numerous safety nets, Venema was able to make sure that his system was secured from any prospective failures. This quote talks to the importance of having numerous layers of security in location when handling complex systems, as it can assist to prevent any prospective problems from occurring.