Attention at all passengers. You can now book your train tickets on Uber and get 10% back in Uber credits to spend on your next train journey.

So no excuses not to visit your in-laws this Christmas.

Trains now on Uber. T's and C's apply check the Uber app. Hello, I'm Ratch Neshan Vogue, economics correspondent at The Economist, and this is Money Talks.

Coming up on today's show, Vision Fund 2, the $100 billion bet.

It's very difficult if you're a young firm to ignore a beast as powerful as the Vision Fund.

Chickanomics, how did the chicken cross the road to become the rich world's most popular meat?

And charismatic leaders.

Whatever charisma is, I don't have it.

Are they overrated?

First up, Masayoshi Son, a Japanese tycoon, set up the Vision Fund in 2016.

It raised a hundred billion dollars to invest in innovative tech start-ups.

The fund has taken bets on all sorts of companies

including Uber and We Work

but it hasn't been without problems

now Masa as he's known

is preparing to raise as much as a hundred billion dollars for a second fund,

but questions still persist about how the funds are governed.

Tamzin Booth is our business editor.

Hello, Tamsin. Hello, thanks for having me. It's been two years

since the first Vision Fund was raised. How's it gone? Well so far there's been a lot of

spending so the Vision Fund has just over a hundred billion dollars in it. The main

task for the past two years has been to dole it out to deserving entrepreneurs, which is a harder

...