Rihanna — singer, fashion star, free spirit — is a goddess, yes. But even goddesses have limits. And the internet has uncovered Rihanna’s one true limit: despite her undisputed status as one of the world’s most sought-after women, she can’t wink. Twitter user @NotAgainBen has documented the evidence extensively in a series of tweets with videos of the soon-to-be recipient of MTV’s Video Vanguard Award trying — and, ultimately, failing — to perfect the single-eye blink.