500,000,000,000,000,000,000: In Stephen Baxter's Manifold: Time novel, the last descendants of humanity, close to the Big Freeze, make some changes to our near present in order to release the universe's vacuum energy, spawn new universes, and prevent the Big Freeze from happening at this time.
500.000.000.000.000.000.000 (500 kuintilyun): Dalam novel Stephen Baxter, Manifold: Time, keturunan terakhir manusia, mendekati Big Freeze, membuat sejumlah perubahan terhadap masa kini untuk melepaskan energi vakum alam semesta, memunculkan alam semesta baru, dan mencegah Big Freeze terjadi pada masa itu.