All projections of the future of the Earth, the Solar System, and the universe must account for the second law of thermodynamics, which states that entropy, or a loss of the energy available to do work, must rise over time.
Sve projekcije budućnosti Zemlje, Sunčevog sistema i Svemira moraju uzeti u obzir drugi zakon termodinamike, koji kaže da entropija, ili gubitak energije dostupne za rad, mora da raste tokom vremena.