At 65 years old, a person is eligible for Medicare and Social Security. This season marks the Louisville Ballet’s 65th anniversary. Can you think of anything less needful of a retiring, slower life? The dancers still bounce around too much over there. This year’s high-energy opener is full of famous names: “Theme and Variations,” by George Balanchine, and “In the Upper Room,” by Twyla Tharp. Also on the program is the world premiere of “How They Fade,” by artistic and executive director Robert Curran. Continuing the Ballet’s association with artists from the community, the scenic design is by visual artist Letitia Quesenberry, and the Louisville Orchestra will be accompanied by the art-pop band Yassou.