Robot

Physical Humans no longer exist. And Robots replace us. Being able to work without getting tired or exhausted, as well as limitless knowledge and abilities, means they have expanded their civilization to a whole galaxy. Every planet, star or solar system in that galaxy has been conquered and colonized. Even the central black hole is conquered too, which leads into the birth of Singularity Gather. Now, human's civilization has finally reached Type III on the Kardashev scale. Capturing the energy of gamma-ray bursts is now a possible power source for a highly advanced civilization. The emissions from quasars can be readily compared to those of small active galaxies and provide a massive power source.