You were interested, in the old days, of knowing the slightest minutia about a company.
You once said in characterizing Ben Rosner, "Intensity is the price of excellence."
Your research style seems to have morphed over time from a sleuth-like analysis -- American Express (AXP) comes to mind, when you hired Henry Brandt (father of Ruane, Cunniff & Goldfarb's Jonathan on today's panel!); you and he conducted weeks of analysis, in site visits and channel checks.
Now, not so much in later investments. As an example, you famously thought of making the Bank of America (BAC) investment in your bathtub.There is an investment message of this transformation from being intense to less intense. Would you please explain the degree it has to do with the market, Berkshire's size or other factors? A: Warren responded by saying that he finds running Berkshire to be the most interesting thing to do. "I have every bit of the intensity, though it's not manifested in the same way," he said. "I love thinking about Berkshire, about its investments, about its business. It's a part of me." Charlie said, "It