Before “influencer” was a job title, Stewart turned a discount-store licensing deal into nearly $2 billion in annual sales. Then the ImClone scandal cost her about $1 billion.

Gen Z is on track to be the “largest, wealthiest, and highest-spending generation to date,” according to Art Basel and UBS.

Casse built a global business spotting future champions—and learned that even the best judgment can’t guarantee a winning investment.

The ultra-rich have exited the U.K. for tax safe havens. A steel billionaire quit Britain after 30 years for the Alps, and an 88-year-old fled to Monaco.