I Test On Prod
Inspiring piece. The better and more advanced you get at testing your code for all eventualities and scenarios, the easier it is to loose out of sight that you will never produce perfect software, there are just too many modes of failure. Hence “Testing in Prod” is not an artifact from times long gone, it is a reality and your org needs to be able to do it.
A system’s resilience is not defined by its lack of errors; it’s defined by its ability to survive many, many, many errors.