Nothing screams "future me is gonna hate past me" quite like late-night coding sessions where your brain convinces you that cramming an entire validation function into a one-liner arrow function with optional chaining, logical AND operators, and a REGEX THROWN IN FOR GOOD MEASURE is peak software engineering. At 2 PM you're writing clean, readable code with proper if statements like a responsible adult. But at 2 AM? You're basically a code golf champion speedrunning your way to unreadable spaghetti that checks all the boxes: ✅ Less code ✅ Looks smart ✅ Future me's problem. Spoiler alert: Future you opens that file, sees "u?." and that cursed regex, and immediately questions every life choice that led to this moment. The optional chaining is doing overtime, the regex looks like someone smashed their keyboard, and good luck debugging that when it inevitably breaks. Sleep deprivation is one hell of a drug.