Entropy is the tendency of all matter in the universe to shift toward states of lower energy. According to Gunbuster Science Lessons, Topless abilities are related to this concept.

Scientific Explanation Edit

Entropy is a measure of the chaos of a system: the less organized a system is, the more entropy it has. In the universe, all matter has a tendency to move from a state of high energy and low entropy to a state of low energy and high entropy.