Elon Musk probably won’t buy Twitter

Four years ago, Elon Musk vowed to set up a peanut brittle company to take on Warren Buffett’s iconic U.S. confectioner See’s Candies. Then he changed his mind. It wouldn't be surprising if Musk's $44 billion deal to buy social network Twitter went the same way.

Sure, the Tesla boss was clearly serious about acquiring Twitter as of recently. The financing from Morgan Stanley is shored up. The agreement includes a fee of $1 billion that he – or Twitter – would have to pay if they renege on the contract. And Twitter’s...