This article does its subject something of a disservice in the fourth paragraph: "His fortune comes not from some flash of entrepreneurial brilliance or dogged devotion to career, but from a lifetime of prudent do-it-yourself buy-and-hold investing."
We learn later in the story that Wertheim did in fact demonstrate enterpreneurial brilliance and dogged devotion to his career and was an unimaginably successful buy-and-hold investor. The company he founded, BPI, threw off up to $10M / year in cash that funded his investment portfolio.
That he he was successful not just as an investor, but also as an inventor and entrepreneur, is what's truly amazing.
We learn later in the story that Wertheim did in fact demonstrate enterpreneurial brilliance and dogged devotion to his career and was an unimaginably successful buy-and-hold investor. The company he founded, BPI, threw off up to $10M / year in cash that funded his investment portfolio.
That he he was successful not just as an investor, but also as an inventor and entrepreneur, is what's truly amazing.