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. You're listening to Money Talks from Economist Radio, our weekly podcast on the markets and the world of business.

I'm Ratch Nacharnbogue and this week how to feed the world.

Cracks are beginning to appear in the farm-to-table supply chain.

For any farmer throwing out basically the fruits of your entire labour is a very

challenging and uncomfortable decision but ultimately we don't have a choice might pass crises hold lessons

about how to keep food supplies flowing I think that this panovic might shock people

into realizing that the approaches we were taking before aren't going to be

sufficient anymore. And could this test help prepare producers to feed tomorrow's world?

It tips the entire concept of food production on its head.

For billions of people, the journey their food makes to get to their plates is a mystery.

And they're happy for it to stay that way, that is, until their reliable supply of grub is threatened.

As much of the rich world went into lockdown to try to stem the spread of the coronavirus, fears of shortages sparked panic buying of stall cupboard staples.

As some countries began to limit exports of wheat and rice, even leaders known for their

multilateralism, like France's Emmanuel Macron, were calling for a new drive to national and

regional self-sufficiency.

We've got to rebatier in a dependence, agricultural, saniters industrial, technology,

and more autonomy strategic for our Europe.

But in a kind of capitalist miracle, many of those early fears have not materialised.

The global food system, the unsung star of 21st Century Logistics has largely managed to carry on filling shelves, plates and stomachs.

To find out how and whether it can continue to do so, I'm joined by our finance correspondent

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