It's just an extreme example to show that time and life both have comparable value. Speed limits have an implicit value comparison. If you want to minimize dwa

It's just an extreme example to show that time and life both have comparable value. Speed limits have an implicit value comparison. If you want to minimize dwaths you could ban all modes of transportations or set a 1 mph speed limit, but we value our economy and time more than the amount of deaths caused by higher speed limits.