You know that developer who swears their code is "self-documenting" because they used variable names like x , data2 , and doStuff() ? Yeah, reading their code is basically archaeology. You're standing there like Indiana Jones trying to decipher ancient hieroglyphics, except instead of unlocking the secrets of a lost civilization, you're just trying to figure out why they nested seven ternary operators inside a forEach loop. "Self-documenting" is code for "I was too lazy to write comments and now you're going to suffer." Spoiler alert: your clever one-liner that saves three lines of code isn't clever when it takes 30 minutes to understand. Write the damn comments.