A lot of people have dreams about falling, so we are going reveal what these falling dreams are really about! There are two types of falling dreams; the first one is where you are just drifting off to sleep and you think you are still awake and all of a sudden your body jerks and you wake up. This is physiological glitch taking place.
World Systems Theory. The world systems theory, developed by sociologist Immanuel Wallerstein, is an approach to world history and social change that suggests there is a world economic system in which some countries benefit while others are exploited.
The modern synthesis was the early 20th-century synthesis reconciling Charles Darwin's theory of evolution and Gregor Mendel's ideas on heredity in a joint mathematical framework. Julian Huxley invented the term in his 1942 book, Evolution: The Modern Synthesis.