I have no idea about Bobby McFerrin’s net worth. A quickie Google search tosses out an estimate of $4 million as of 2019. That means he probably won’t have to be busking on street corners to feed himself in his old age, but if even close to accurate, it is certainly no great shakes in the firmament of the uber rich, even within his own rarefied world of popular singers and entertainers. (Bruce Springsteen: $500 million, Jay-Z: $1.4 billion, Tom Hanks: $400 million). But capital comes in many forms, and to survey McFerrin’s life and body of work is to…