Berkshire Hathaway’s $1 billion homebuilding investment indicates Warren Buffett’s confidence in a future U.S. housing market rebound.

It is understandable that many investors are struggling to imagine the financial world without Buffett. But it is silly to think he has failed to prepare his company for what comes next.

The Omaha-based conglomerate bought more than 5 million shares in the health care firm for a stake worth about $1.6 billion at the end of June.