The two generations who will get the last laugh as the world ends.

If you've ever perused the t-shirt section at your local Goodwill Superstore, there is a good chance you've seen a boomer-core shirt . The Baby Boomer generation is very likely the first generation to express their angst via t-shirts . Think about it: anti-Vietnam War protesters? The Gay Liberation Front? Would these movements have been possible without Boomers wearing t-shirts that clearly articulated their opinions? I don't think so. Since their youth, the boomer t-shirt industry has grown in…