Tech billionaires trying to live for ever? That’s a waste of time, says physicist

Prof Jim Al-Khalili will explore some of the paradoxes of theoretical time travel in his Christmas lectures. Photograph: Paul Stead Prof Jim Al-Khalili will explore some of the paradoxes of theoretical time travel in his Christmas lectures. Photograph: Paul Stead Physics Tech billionaires trying to live for ever? That’s a waste of time, says physicist Exclusive: Prof Jim Al-Khalili says he will offer solution to ‘arrow of time’ problem in Royal Institution lectures

Prefer the Guardian on Google Tech billionaires attempting to live for ever are, quite literally, wasting their time, a leading physicist has said.