Like Cronkite’s Pronouncements About Tet, Heath Ledger’s Departure Portends Trouble For Second-Tier Celebrity Mascots Across Brooklyn . . .

Because once you’ve lost Heath, mass foreclosures can’t be far off . . . Heath Ledger as leading economic indicator:

It wasn’t supposed to matter to Brooklyn. Heath Ledger, the crown prince of the borough’s celebrity aristocracy, apparently fled his fiefdom in Boerum Hill for Manhattan after splitting up with his girlfriend, the actress Michelle Williams.

“To each his own,” said Jay Wilkinson, 29, an actor who lives in the neighborhood, speaking just blocks from the house on Dean Street where Mr. Ledger had lived since 2005 with Ms. Williams and their daughter, Matilda. He echoed a theme expressed by many on blogs and in the streets after the breakup. We barely notice the stars among us. If we lose one, no big deal.

In that, though, lies a tale of arriviste anxiety. What if Brooklyn’s recent cachet as the locus for what’s next is little more than a thin and fragile crust of chic, hiding the insecurity of people who constantly measure the social currency of their ZIP code by Manhattan standards?

The number of trendy boutiques, bistros and music clubs in Brooklyn may have spiked in the last five years, but its infrastructure of cool still represents only a fraction of that found in Manhattan. Its new identity is moored to a finite number of shops, restaurants, luxury condominiums and, yes, celebrities. If even one leaves, a void is created. Could the borough’s new status vanish as quickly as it ascended?

In recent years, Brooklyn’s pool of second-tier celebrity mascots (John Turturro, Rosie Perez, Norman Mailer, Steve Buscemi) has swollen and taken on a level of movie-star glamour, thanks to recent home buyers like Jennifer Connelly and her husband, Paul Bettany, Adrian Grenier and Maggie Gyllenhaal and Peter Sarsgaard.

These famous names, functioning as both symbols and selling points for the new Brooklyn, helped drive up property values, provided a focus for gossip in coffeehouses and dog runs, and instilled pride among the tide of newcomers who arrived — sort of by choice — from Manhattan and beyond.