You’re stuck in the bubble. You wake up and you go to class, and you have homework to do, and a club meeting, and friends to hang out with and drama to deal with and a midterm tomorrow and a party on Thursday.
You’re so stuck in the bubble that you’ve forgotten that you’re in one. Slowly you forget that there’s another 6.99 billion people in the world who are not in your bubble. And those 6.99 billion people sometimes do things. And those things sometimes affect you. And if you aren’t paying enough attention, then it will catch you completely off guard.
You can live in the bubble all you want, but the outside world exists. And it will continue existing whether you believe in it or not. And sooner or later the real world is going to bump into you. And your bubble will pop.