I don't think that challenge is dissimilar to that in a variety of sectors beyond the aviation industry. I think we face a productivity challenge as a result of demographics, our aging demographic and what comes in behind it. The choices are either to increase productivity, which is to do more with less than historical employment levels, or to perhaps see some contraction in the size of various industries to sort of rightsize the relationship. Are those two plausible outcomes of a situation like this?