Raiders of the Lost Code
You know you've been hanging around compilers too long when you can look at someone's code and carbon date it just by looking how they iterate over a dataset:
pre-2005: Standard For loops, no shorthand.
2005-2010: Foreach loops
2010-2015: Linq statements
2015-2023: Dynamic variables, shorthand notation
2023+: Well-written Copilot-generated code with sufficient whitespace for coder to process their AI-induced anxiety attack.