Democracy then degenerates into tyranny where no one has discipline and society exists in chaos. Democracy then degenerates into tyranny from the conflict of rich and poor. Moreover, according to Thomas, oligarchy degenerates more easily into tyranny than monarchy. Hindus believe that human civilization degenerates spiritually during the Kali Yuga. Accordingly, democracy degenerates into "ochlocracy", literally, "mob-rule". The occupation leads to a party which degenerates into an orgy. The match eventually degenerates into global destruction. However, when the two points collide, the secant line degenerates to a tangent line. Obsidian later degenerates into an egg consisting purely of darkness. After the child is born, the umbilical vein degenerates to fibrous tissue, the round ligament. In the fifth month the membrane degenerates but leaves a remnant called the hymen. However, Maxim survives and joins a group of rebel "degenerates". In fact, thermodynamics is typical of compressible flows and degenerates in incompressible flows. The SNpc is the part that degenerates during Parkinson's disease. Goddard termed this generation "a race of defective degenerates".