if you are planning to succeed, never forget you need to plan to fail in parallel.
if you are expecting something to work, never forget they will 100% not going to work
if you are hoping someone will do the work that you expect to do, just forget your hope, they won’t do it
if you are thinking that a system or a computer, or a program will work as expected, don’t ever think that way, they will never work
remember Murphy’s law