I recall a Kurt Vonnegut novel where the Chinese, because they had such a big population and thus a big food problem, decided to scientifically make themselves smaller, and smaller in size in each generation...thus each needing less food...to the extent they became the size of microbes drifting in the wind...and they drifted across the world and everyone inhaled them...and then they grew colonies inside people. It was a fun story. It had great elements of creative imagination and the essence of western psychotic paranoia about China in it...I like Kurt Vonnegut. He told a damn good story.