Anders Sandberg : If you drink a couple of beers, you'll notice various changes to your outlook on life. You may, for example, find that a person you previously found unappealing has miraculously morphed into somebody considerably more attractive. Anders Sandberg, of Oxford University's Future of Humanity Institute, has been reflecting on the neurobiology of love and attraction – he wonders whether, in the future, we might consider popping love pills.