Hey kiddo! Do you know what a bubble is? You know, like when you blow soap bubbles and they get bigger and bigger until they burst? Well, some people think that there is a bubble forming in the higher education system.
See, when you grow up, you might want to go to college or university to learn more things and get a good job. But some people are worried that colleges and universities are becoming too expensive, and that they're not worth as much money as they used to be. That's where the higher education bubble comes in.
Some people think that the cost of going to college is getting so high that it's creating a bubble. Just like with housing, when people thought that housing prices couldn't keep going up forever, some people think that the cost of going to college can't keep going up forever either.
The worry is that too many students are taking out big loans to pay for college. They might get good jobs after they graduate and be able to repay their loans, but if too many students can't find jobs that pay enough, or if the cost of college keeps going up, then those loans might not be repaid. When that happens, the people who loaned the money (like banks and the government) might not get their money back, and that could be really bad for the economy.
So some people think that the higher education system needs to change, so that it's more affordable and sustainable for everyone. Some ideas are to make college cheaper, to encourage more vocational training, or to make sure that students get the jobs they need to repay their loans.
Does that explain it, kiddo?