Yes, it is indeed possible but I never thought about it except after reading this article. I actually asked myself about the possible reason why there is an institution that provides this offer. But then I figured out that this system could possibly be used to accelerate the degree completion of students. This could probably cut the time you need to complete a degree.
And it is simply amazing to know that this can be possible with the advent of online education. Who could think that taking classes in more than one university at the same time will be this easy? Studying in three universities at the same time are now being done at Arizona through Arizona Universities Network; however, according to the above write-up, there is currently small number of students who are taking advantage on this system however, the statistics are growing because this grants students more flexibility in attending classes.