Paying tribute to her,one friend described Karen as ‘a strong businesswoman who had an air of authority about her’,while another said she ‘didn’t have any enemies’ (Picture: Handout)

'With only a few words you can prompt a whole song.'

Sam Altman’s OpenAI has become one of the world’s most influential tech companies (Picture: Justin Sullivan/Getty Images)

'Quantum computers could help us probe parts of the universe we have never seen.'

People have been told to get to higher ground.