There's a serious danger that the college education bubble may burst. As more and more people get college degrees, which inevitably have to become easier to get in order to increase the amount of graduates beyond its realistic levels, the market will eventually figure out that the degree doesn't mean what it used to. It will become less useful as a heuristic for intelligence and achievement. And college graduates will find themselves with an asset-a degree-whose value is dropping while their debt remains high.