Bursting the Bubble Tulips were the first, but they won’t be the last. What forms a “bubble” and what causes them to burst? Share | Have A Question About This Topic? Name Email Address Message Thank you! Oops! Related Content Should You Borrow from Your 401(k)? Does it make sense to borrow from my 401(k) to pay off debt or to make a major purchase? Retirement Questions That Have Nothing to Do With Money Things to consider before retirement. Saving Early & Letting Time Work For You The earlier you start pursuing financial goals, the better your outcome may be.