He says he learned those skills with the management consultancy McKinsey, and says he tries to spend most of his time on the five to 10 reallybigthings that will make a big difference to his companies.
Really impressive things, such as evidence of the Great Inflation, the big growth that came 10 to the -35th of a second after the Big Bang and made our universe possible.
Our attention is often captured by news about large products such as cruise liners or airplanes, but one of the best ways for investors to think big is by thinking about the small things in life: the really, really small things.
In recent years purchasing houses and other big-ticket items based - doing so with debt really, really helped buoy the economy when many other things weren't growing.