Captions : The extreme sophistication of modern technology – wonderful though its benefits are – is, ironically, an impediment to engaging young people with basics: with learning how things work. Martin Rees

Captions : I think pain is a very – it’s an extremely hard thing to empathize moment to moment. And you often don’t remember your own pain, you know, that moment that you broke a limb or you burned yourself or, I think, this is a common thing that women talk about with childbirth, that the memory of the pain is hard to summon up and relive, thankfully. Hugh Laurie