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
Infinity on High inside the top five worldwide in countries including Canada, the United Kingdom and Australia. "Infinity on High" has sold over two million units worldwide, with 1.4 million sales in the US as of February 2013. Five of the album's fourteen songs were released as singles, of which three charted on the "Billboard" Hot 100, led by the single "This Ain't a Scene, It's an Arms Race" at number two. The album was certified Platinum by the Recording Industry Association of America (RIAA) on March 12, one month after its release, for shipments of one million copies. It received generally positive