The Met Gala   red carpet is not your regular red carpet ; the exhibit is inside, but the show is outside. Arguably the most entertaining, and unforgiving, runway in the world, forget about the Grammys or even MTV Music Awards at its peak. This is where fashion goes full fantasy, sometimes genius, sometimes completely unhinged. Katy Perry as a chandelier still feels surreal, Jared Leto as Choupette veered into full Cats territory. That tension is the magic. And then there are the moments that land with absolute clarity. Beyoncé redefining  the naked dress  with intention, Princess Diana in Dior by John Galliano, effortless and eternal. Rihanna has arguably mastered this carpet, using it to position herself as fashion royalty season after season. That is the power of these steps. From The Mark Hotel to The Carlyle, New York turns into a procession, and the world watches instantly.…