Prison scene: two inmates chatting. The smaller one confesses, "I wrote a regex without Googling." The muscular inmate's reaction? Pure shock: "DUDE. WTF?!"
Writing regex from memory is basically the developer equivalent of claiming you can disarm a nuclear bomb blindfolded. Even senior devs with 20 years of experience still copy-paste that email validation pattern. The confidence required to manually craft those cryptic `/^[a-zA-Z0-9]+$/` monstrosities without Stack Overflow backup? Absolutely terrifying.