Infinity symbol in bookbinding to indicate that a book is printed on acid-free paper and will therefore be long-lasting. In modern mysticism, the infinity symbol has become identified with a variation of the ouroboros, an ancient image of a snake eating its own tail that has also come to symbolize the infinite, and the ouroboros is sometimes drawn in figure-eight form to reflect this identification, rather than in its more traditional circular form. In the works of Vladimir Nabokov, including "The Gift" and "Pale Fire", the figure-eight shape is used symbolically to refer to the Möbius strip and the infinite, for instance
Number 1 to Infinity after Canadian megastar Celine Dion announced that she had postponed dates of her residency at Caesars Palace to care for her husband, René Angélil, who was suffering from cancer. Aside from singing "Infinity" at her residency, Carey performed a medley of her 1990 debut single "Vision of Love" followed by "Infinity" at the "Billboard" Music Awards on May 17, 2015; it was her first performance at the ceremony in seventeen years. Andrew Hampp for "Billboard" described the performance as "octave-leaping" and one of the most memorable of the night. Other promotional appearances included "Jimmy Kimmel Live!" and "Live! with Kelly