Hello and welcome to more or less your weekly guide to the wonders and dangers of statistical

deep water.

This week we ask whether sharks should be more scared of humans and humans are of sharks.

We explore how computer games such as Fortnite and FIFA are reshaping the country's economic

statistics.

And we ask whether it's really true that bricklayers earn more than dentists.

But first, over in the US the televised debates to help select the democratic nominee for

president have begun.

Here was an eye catching spat between 45 year old Julian Castro, 100 to one outsider,

and 76 year old Joe Biden, one of the front runners.

Barack Obama's vision was not to leave 10 million people uncovered.

He wanted every single person in this country covered.

My plan would do that, your plan would not.

They do not have to buy in.

They do not have to buy in.

You just said that, you just said that two minutes ago.

You just said two minutes ago that they would have to buy in.

You said they would have to buy in.

If you qualify for the president, you're forgetting what you said two minutes ago.

Are you forgetting already what you said just two minutes ago?

Well might they gasp.

Castro seems to be implying that former vice president Biden might have been suffering

...