> that is also the time when people should be watching the safety video I thought we were talking about the most dangerous parts of a flight, takeoff and landi

> that is also the time when people should be watching the safety video I thought we were talking about the most dangerous parts of a flight, takeoff and landing, which are not when the safety video (or presentation) happens? > With a huge number, it is possible to make something look reasonable or un-reasonable. Wasting billions of hours of peoples time. Sounds bad, we should get rid of that. I agree that we're not good at thinking about this kind of scale. I think a better way to make this at a scale that works well is to look at everything on a per-person basis. So if it saves one life per year (which I suspect is high) then we're balancing 10min of boredom against 0.0002 micromorts [1], in the same range as traveling 270ft by car. Someone who would rather ride 100mi in a car with their phone than 101mi in a car without their phone is already ok with this kind of risk. [2] [1] 1 in 4.5B chance of death [2] 230mi per micromort, so 100mi is 0.435 micromorts and 101mi is 0.439 for a difference of 0.004 micromorts. If the journey is 1.5hr then this is 9 rounds of trading off 10min of boredom for 0.0004 micromorts. Which is twice the risk of death we're positing in the airplane example.