Du Gang suppressed his emotions and asked, "So, what's the standard for a first-class civilization?"
Pang Ze replied lightly, "There are two criteria for attaining first-class civilization status."
"First, the natural evolution of technology to the standard of a first-class civilization, i.e., the ability to reasonably utilize the resources of the mother planet, to achieve interstellar travel, colonization... In terms of energy technology, they must proficiently employ quark fusion!"
Quark fusion. Du Gang knew about it from discussions during his physical education class.
Not long ago, a scientific journal had published an experiment on quark fusion.
In a nuclear fusion experiment using heavy water as the raw material, an atom of deuterium and an atom of tritium release about 17 trillion electron volts of energy when they fuse. However, the quark fusion resulting from the collision of two subatomic particles produces 138 trillion electron volts of energy!
