For a couple years I've been blaming it on lack of sleep and too much partying, but now I found out the real reason: I'm tired because I'm overworked. The population of this country is 237 million. 104 million are retired. That leaves 133 million to do the work. There are 85 million in school, which leaves 48 million to do the work. Of this there are 29 million employed by the federal government, leaving 19 million to do the work. 2.8 million are in the Armed Forces, which leaves 16.2 million to…