It's not necessarily the conciseness that's a problem. Using foreach instead of a full for loop is one thing. What I'm complaining about is code in place of an

It's not necessarily the conciseness that's a problem. Using foreach instead of a full for loop is one thing. What I'm complaining about is code in place of an explanation. E.g. imagine coming across some nasty piece of code like this: https://en.wikipedia.org/wiki/Fast_inverse_square_root#Overview_of_the_code https://en.wikipedia.org/wiki/Fast_inverse_square_root#Overv... It doesn't matter how familiar you are with the language. Without an explanation of what the hell is going on, just looking at the code is useless.