A Welsh scientist, who grew up in the shadow of the Port Talbot steelworks, had an idea on the way home from the lab where he was working. It was quite a good idea, as it turns out.
As Andrew Hopkins used his idea to go on and develop one of Britain's largest biotech companies which recently floated on New York’s Nasdaq stock exchange for $2.9bn.
The 50-year-old grew up on a Neath council estate and describes his upbringing as typically "working class". But he's swapped the cooling towers of the nearby steelworks at nearby Baglan for the ivoried towers of Oxford after setting up his company, Exscientia, which is changing the biotech industry. You can get more news like this and other story updates straight to your inbox by subscribing to our newsletters here.