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Hello, welcome to the programme. This week, one guest, multiple things to discuss, because he is

Warren East, the 61-year-old engineer who, for most of this century, has been a chief

executive of two different companies, and not any old companies, but really the crown jewels

of the British private sector. First, Arm Holdings from 2001 to 2013, a 12-year stint at the top of

the company that many may still not have heard of, but all benefit so much from its work. Arm is the

chip designer to the world. Warren was there as smartphones took off

with most of them around the globe armed with armed designed chips. Then from 2014 to 2022 he had an

eight-year stint at sometimes difficult stint in fact running Rolls-Royce, the jet engine maker,

not the car company.

Never a dull moment there, whether it was dealing with a billion pound problem caused by

blades cracking on one of Rolls-Royce's key engines for new planes, or investing in new modular

nuclear reactors to generate low-carbon electricity.

Well, Warren East is with me in the bottom line studio,

arguably the most important British business figure this century. I'm bigging you up here,

Warren. You certainly are. But look, let's just start with Rolls-Royce, because it was a very difficult

and torrid time at times when you're in charge that. And let's just start with that Trent

1000 engine, because this is an engine very important.

787 Dreamliner, Boeing plane.

They've given two companies, really, the franchise to produce engines for these planes.

Rolls-Royce, General Electric.

What happened?

...