Businessmen are serious people, right?  Not always.  Steve LeBel — hospital president, technology entrepreneur, algorithmic trader — is definitely not serious.   Not when he writes.   Whimsy overcomes him at the word processor. Whimsy is at the core of his novel, The Universe Builders, which is told with LeBel’s unique balance of seriousness, humor, and whimsy.     LeBel lives in Muskegon, Michigan with his wife and two cats.  When not writing, he is busy planning his next trip, cursing the stock market, providing tech support for his friends, or thinking up new plots for The Universe Builders.