Legendary octogenarian Japanese artist Yayoi Kusama’s immersive, mind-blowing, magical installation exhibition “Infinity Mirrors” is traveling throughout North America over the next two years. Starting in Washington, D.C., where it was the most-visited exhibition in Hirshhorn Museum history, “Infinity Mirrors” is now at the Seattle Art Museum until Sept. 10. “Infinity Mirrors” will then move to Los Angeles, Toronto, Cleveland, and…