and he's made some seemingly rather outlandish claims in the past. am i right you are the guy that said the world's first 1,000—year—old has already been born? i always make clear that it's only something i think is probable. but yes, i do think it's probable. if we look at the logic, it's very straightforward, the risk of dying in your 20s is low. if you get to your 26th birthday your chance of reaching your 27th birthday is very high. the chance of not reaching it is less than one in 1,000. the only reason that people don't live to 1,000 already is because of ageing, because their probability of death in the coming year goes up. it happens to go up by about 10% per year. does it, 10% per year? you are 10% more likely to die at the age of exactly 63 than you are at the age of exactly 62 and so on. blimey, that's quite high. but if we can fix this damage that doesn't happen any more, the probability of dying

stays only being limited by the probability of things that don't have to do with how long ago you were born. what you're saying is you think within the lifetime of someone who hasjust been born you will learn how to effectively cancel out ageing? we develop ways at the molecular and cellular level to repair the damage the body does to itself throughout life. this is something i've called longevity escape velocity. we are not talking about massively lengthening human life, we're talking about massively lengthening people's healthy lives. if people can stay healthy for longer, i think generally there would be approval from society. what do you see society being like if everyone had massively extended lifespans? that's not what gets me out of bed in the morning, what society's going to be like. what gets me out of bed is the fact i don't like people getting sick. i don't like the fact 100,000 people a day die of ageing.

i'd like to hasten the defeat of that problem. also you got to take into account people are only going to get older one year per year. i mean, we're not going to have any 1,000—year—old people or at least 900 years whatever happens, and that's quite a long time to figure out what to do about it. the enigmatic aubrey de grey. wow, can you imagine living in a world where we all might live to be more than 1,000? that would be strange, wouldn't it? mind you, first we all have to get past the year 2049, which according to the recent blade runner movie, is a pretty bleak time. that film won the oscar for best visual effects last weekend and to celebrate we thought we would bring you a bit of extra behind—the—scenes science that went into making that world. i think you found him. that's not possible. if this gets out... we've bought ourselves a war. there's obviously a huge responsibility to deliver something

for the audience of blade runner from the first one. the expectation visually making everything look cool was on our mind every day. the demands of vegas and the expectation of making something that was based on what we know vegas now, but what it would be in the future. so we started with the us geo data, the vegas valley and the city itself. so we had a simple model in the computer. dennis gassner, the art director of the film, had built a simple model of vegas with some new buildings placed around and so forth, we took those two and sort of smashed them together initially. we looked for ways very subtly of how to bring in the human element into the shots, how to sell that scale, analysing some of syd's work and how he used graphics on the face of his buildings, how he in a lot of his paintings used little human scale futuristic items. we built all that stuff and placed it around the city

in an organised way to make it look like people were there at one time, even though we see no one, and that's what made it look real or look like a place people could have been in. to build trash mesa was based on the idea that everyone had moved to the city and all the structures are outside the city had been pretty much abandoned. there was no power, no water, nothing outside, so the trash generated for the city was dumped on the buildings outside the city. again, we're trying to base things on as much reality as we could, so we started with the landscape of current day california, from los angeles to san diego, and we determined iceland was the place to photograph the groundscape and the beach. so through aerial photography of that we placed the two on top of each other and then the sequence of the ships was based on the bangladesh ship harvesting yard where they recapture all the metal and so forth that happens now. so a lot of the ships and the pieces

of the ships and the idea of these little tiny human beings working on these massive structures sort of drove that look through the middle of that sequence. so it's a matter of grabbing all these components that were based on today's reality, scaling them so they have this massive relationship between k in his little spinner in this enormous landscape and these huge amounts of trash. it was a matter of pulling off that scale and that distance, which was just a massive undertaking just with the amount of data and assets we had to build and things we had to manage in itself to pull that off. the future of the species is finally unearthed. it is a brilliant film, absolutely superb. blade runner 2049, a well—deserved oscar winner there. that's it from us for this week. don't forget we live on twitter @bbcclick and on facebook too. thank you very much for watching and we will see you soon.

hello. pa rt part two of the weekend has been mixed. a fine day across much of scotland and northern ireland. further south, low—pressure has brought showers into thunderstorms across southern and south—western parts of the uk. it will continue through tonight and into tomorrow. we have had some thundery downpours across the south east of england. some thunder with the rain further west. it will spiral northwards and move eastwards as well. we could see

rain in northern ireland and scotland. a clear and cool night. less called for the south because of the wind and the rain. monday a cloudy and damp note for england and wales. the rain clearing from northern ireland and scotland. the best of any sunshine in northern ireland, western scotland. a bit cooler than today. temperatures in single figures. maybe 12 celsius in the south. that weather system moves away on tuesday. ridge of high built—in. from wednesday onwards it looks like we will see these areas of low— pressure looks like we will see these areas of low—pressure bringing more cloud and outbreaks of rain. a wet start in the east on tuesday, particularly the south—east. the winds will fall life as well. the ridge of

high—pressure built—in. spells of science and across western areas. not feeling too bad in the sunshine. temperatures between nine and 11 degrees. cloud building up in the west later. as we head through wednesday looks like those weather fronts will move into northern ireland and western britain. eastern areas will start dry and see sunshine before the cloud starts to build in. cloudy through the afternoon generally. temperatures between nine and 11. double—figure values from much of this week before it starts to cool down slightly by the end of next week as we head into the end of next week as we head into the new weekend. it looks like we will see outbreaks of rain at times. the winds continuing to pick up. this is bbc news. i'm martine croxall. the headlines at seven. the bbc understands traces of the nerve agent — used to poison sergei and yulia scripal — were found on and around the restaurant table where they ate.

england's chief medical officer says up to 500 diners and pub—goers have been told to wash their clothes and possessions. some say the advice should have come earlier. we haven't taken that precaution yet. a little outraged, to be honest, that we only find out 110w. the chancellor says there's cause for economic optimism — ahead of his spring statement on tuesday. there is light at the end of the tunnel. what we are about to see is debt starting to fall after it's been but we are still in the tunnel at the moment. rail disruption at manchester piccadilly station after pro—kurdish demonstrators take to the tracks and suspend