in the video you ran, rai caluori, three healthy men simulated walking to. i have been on cruises, that is not what the population generally looks like. helped me to understand how much confidence you have in your simulations that those actually replicate what we might see in a real-world situation? i will just go down the line. obviously you work dissimulation. >> the video just showing the principle of course. if you look especially at the cabins considered, at they are considered between 6, and 12 minutes roughly. and so the corridor, the first corridor will not be that crowded as you may expect because they are not just jumping all out of their cabins and standing in the corridor. .. there are some bigger tests but the problem is if you want to identify the time you cannot run the test in the reaction time for insurance reasons and for the safety of the people attending. >> the question is how much confidence do you have in the assimilation that they represent real-world conditions? >> i believe they are good. we do that for many years and we have a safe

rai caluori, executive vice president, fleet operations of princess cruises. dr. daniel pavel, deputy head of safety and risk, system engineering. mr. niels fraende, sales and engineering for viking life-saving. and captain hans hederstrom. >> mr. caluori. >> thank you. thank you very much, chairman hersman, vice chairman, thank you very much for the opportunity to present today. i think one of the lessons i've learned is that you never stop learning in this business. having sat in the audience for today's i've learned some incredible amount. i'm at a slight disadvantage from a lot of the other panelists who presented over the last two days because i don't have a marine or a technical background per se but ahead in the cruise industry for 30 years and started my great 30 years ago with princess, seven years at sea. what this does allow me to do with my team is ask those fundamental questions that sometimes are not asked by the subject matter experts which conservative tried a lot of continuous improvement and change. my job today and i've been asked to present on