Frey points out that, since Republicans are getting whiter and older, replacing the voters that leave this earth with young ones is essential for them to be competitive in presidential elections. "Millennials (born 1981 to 1997) now are larger in numbers than baby boomers ([born] 1946 to 1964), and how they vote will make the big difference. And the data says that if Republicans focus on economic issues and stay away from social ones like gay marriage, they can make serious inroads with millennials." Exit polling indicates that millennials have split about 65-35 in favor of the Dems in the past two elections. If that split holds true in 2016, Democrats will have picked up a two million vote advantage among first-time voters. These numbers combined with the voter death data puts Republicans at an almost 2.5 million voter disadvantage going into 2016.
Venancio takes the historical context for each ship type and then explains how it's been adapted for a sci-context. "Corvettes might be outfitted to have some sort of stealth or cloaking system for reconnaissance or spec ops missions; naturally it would be easier to cloak a smaller ship than a larger one (though plenty of examples of large stealth ships exist). In some series they are likely to be diplomatic vessels due to their small size and speed, particularly seen in Star Wars, and can commonly act as blockade runners (again; their small size and speed makes them ideal for slipping through a blockade, where a larger ship presents more of a target)."