 Oh, it was amazing. I still remember those two weeks so vividly. I went when I was 17. I'm afraid to say 40 years ago when it was the London International Youth Science Fortnight and we were based down at the IE on the river and it was just the most stimulating two weeks ever and I went into science as a result. Without a doubt it was so formative and so exciting and somehow I don't know perhaps that's why I got the bug for what I do now but somehow when I was at school I remember you wouldn't believe it but my physics teacher used to say in order to learn physics you underline once in red once in black and once in blue and I just didn't find that was exciting but when I came to LIYSF and I just you know saw this whole world and young people were doing amazing presentations about research they were doing and I kept up with people so that when I went and did research in America I was still in touch with those but now of course this amazing community of young people can just keep up together as a research collaboration across the world. It's the most brilliant melting pot to have new ideas and get young people to realise how much they can do right now not when they've done you know PhDs but they can start doing amazing contributions now.