 only able to forecast about 50 or 55% of the turbulence in the atmosphere. Fast forward to today and that's more like 70, 75%. And even when a plane does fly through some rough air, a modern aircraft has a much better response to turbulence than one of the previous generation. It moves up and down less. So lots of things are changing. More turbulence in the atmosphere sounds really bad, doesn't it? And nervous flyers hate it. But there's an optimistic message here too.