The theory is wrong

"So far, I don't understand cursed energy too much, but looking at this, I think I understand it a little more. The problem is the heating. Cursed energy is not an ordinary energy; it's not photonic either. It's an energy with mass, and it takes up space. When you heat it up under these circumstances, it expands, and there is no longer a way to increase its density. That caused it to explode." Klaus said.

Jasmine frowned. "You mean thermal expansion? There's no way; how could energy suffer the effects of thermal expansion?"

Klaus smiled. "An energy can suffer such effects, although it could only do so under certain circumstances, and for now, I don't know them, but I think it's more that they don't take into account that the cursed energy is like a kind of gas imperceptible to the common human eye. Heating it so much increases the pressure on the walls of the container, so it will end up causing the same effect sooner or later."