stages of illness. and, of course, we need to utilise as much science behind this as we can to ensure that each and every one of our patients is kept safe. the patients will have to be wheeled one by one from the old building to the new. we've measured through laser distance, we've calculated the steps each staff member will take to understand the fatigue, we've mathematically calculated the co—ordination of different teams with ward moves running concurrently through parallel parts of the hospital. we've spent 18 months now testing every permutation. there's going to be lots of really unwell patients. we can plan for as many eventualities as possible but actually, until the day of the move itself, we won't know exactly who we are transferring. we need to make sure that we can get them over to the new hospital safely. i think we are not far off ready to go. with just weeks to go, the team