As a library author a big aha moment for me was being able to write proc macros. There are so many creative (and simple to implement) ways of getting around cer

As a library author a big aha moment for me was being able to write proc macros. There are so many creative (and simple to implement) ways of getting around certain limitations when you can just do some smart code-gen. I think a lot of people get overwhelmed by the limitations before considering what the world of proc macros has to offer.