Ok, i though about it and have a serious answer. Heat is essentially energy, cold is a lack of energy. So cold equals 0. Energy is infinite. There is an infinite amout of energy in the universe. the only way to top heat out is if all energy in the universe were to change to heat, at the same time, and in the same place. Not easily possible id guess. This makes sense in my
head. But my answer is no. there is no absolute hot.....cept Alba.