Hello and welcome to the Intelligence on Economist Radio.

I'm your host, Jason Palmer.

Every weekday we provide a fresh perspective on the events shaping your world.

The ability to make it rain may seem like a sign of humanity's dominion over nature

and few countries use cloud-seating as much as China.

But it's not only a distraction from better water management policies.

It might not even work.

And, tweet-in-haste-repent-at-leisure.

The news is filled with stories of people's futures curtailed by their social media pasts.

Our language columnist looks at why tweets in particular are a dangerous record

of what may seem like casual thoughts.

But first, today the food delivery startup Deliveroo made its public market debut in Britain.

In its promotional material, the company emphasized they weren't just in it for that opening bell.

But also the bike bells of satisfied riders and the doorbells of happy customers.

But investors might be less pleased than they had hoped.

The company had priced its shares at £3.90, giving it a market value of about £7.5 billion or £10.5 billion.

That was at the bottom end of their hoped for range.

And that share price slid even further in early trading today.

The disappointing start raises questions not just about Deliveroo itself,

but also about efforts to woo tech companies to list their shares in London rather than in New York.

For the city of London, the IPO is really the biggest and most anticipated listing since 2011, so decade ago.

Tams and Booth is the economist's technology and business editor.

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