Before you listen to this BBC podcast, I'd like to introduce myself.

My name's Stevie Middleton and I'm a BBC Commissioner for a load of sport podcasts.

I'm lucky to do that at the BBC because I get to work with leading journalists, experienced

pundits and the biggest sports stars.

Together we bring you untold stories and fascinating insights straight from the player's mouths.

But the best thing about doing this at the BBC

is a unique access to the sporting world. What that means is that we can bring you podcasts that

create a real connection to dedicated sports fans across the UK. So if you like this podcast,

head over to BBC Sounds where you'll find plenty more. Hello and thanks for downloading the more or less podcast,

with a program that looks at the numbers in the news and in life.

And I'm Tim Harford.

Today we mark the end of an era.

The time has arrived where Greg should become the chief executive officer of the company at

year end and I want to...

That's Warren Buffett. He's just announced that he's going to step down as the chief

executive of his company, Berkshire Hathaway. Buffett is one of the richest people in the world

and is widely held up as the greatest investor who ever lived. He's also been remarkably critical

of other masters of the financial universe. I had a chat with journalist Robin Wigglesworth

from the Financial Times, who's the author of

the book Trillions, to understand whether Buffett's reputation as an investment genius stands

up to scrutiny.

Just give us a brief history of Buffett's company, Berkshire Hathaway.

...