What do you think are the best ideas in science of the 21st century so far? Science this century has already dramatically reshaped our understanding of ourselves, the universe and our place within it – and we’re only a quarter of the way through. To recognise how far we’ve come since the turn of the millennium, we put together a definitive list of the 21 most consequential ideas in science and technology of the 21st century so far. Here are some of the picks from our staff. Read our full definit