Tightrope acts are anxious spectacles. So it’s appropriate that Janine Antoni, a virtuoso of public displays of anxiety, learned to walk the high wire for a video commissioned by SITE Santa Fe for her career survey, “taught tether teeter.” Miming a fearless Ariadne whose brave crossings double as a hero’s journey, Antoni, dressed in sky blue, performs in front of her childhood home in Freeport, Bahamas. The camera angle makes her appear to tread the ocean’s horizon. This walk on air and water is a self-parodying pun on the precocious success of the artist, who, at thirty-eight, has been famous