[thaumasiotes]

> If the crash rate for planes was the same as it is for cars then air travel would have to be prohibited as a necessary measure to prevent the extinction of the human race.

Well, no, this is obviously false. Much more car travel is done than air travel; bringing air fatalities up to the level of car fatalities would have a negligible effect on the human population.

Bringing crashes per vehicle mile up to the level of highway crashes per vehicle mile according to https://www.rita.dot.gov/bts/sites/rita.dot.gov.bts/files/pu..., assuming that an average airplane carries 140 people, and assuming (very wrongly) that crashing it kills all 140, you could get deaths to airplane crashes up to 843,000 per year for the US. This would be significant -- it would be an increase of over 30% in the annual death rate -- but it is less than the existing surplus of annual births over annual deaths. A modest reduction in population growth just isn't going to drive the human race extinct.

[AnthonyMouse]

You're assuming the existing expense of making air travel safe is not reducing the quantity of air travel done.

Imagine it was as easy to become a pilot as to get a driver's license, there were no flight plans or restrictions on where people could take off or land and a 500MPH jet could be purchased for $150,000 because there would be less regulatory overhead and more competition in aircraft production.

Affluent people would be commuting by jet. There could easily be ten times as many air miles traveled or more.

[thaumasiotes]

If you want to "reason" that way, take into account that (1) if people started dying from air travel at high rates, they'd do less of it; and (2) societies with much higher death rates have no problem growing anyway, as they compensate with higher birth rates.

[AnthonyMouse]

> if people started dying from air travel at high rates, they'd do less of it

That doesn't seem to stop people from driving cars.

> societies with much higher death rates have no problem growing anyway, as they compensate with higher birth rates.

That's just survivorship bias. Why would one cause the other? There were also societies with high death rates and low birth rates which for the obvious reason no longer exist.

[thaumasiotes]

> There were also societies with high death rates and low birth rates which for the obvious reason no longer exist.

If you claim to be worried about extinction of the human race, you'll have to consider all societies, not just the ones with pathologically low birth rates. A tiny group of people committing suicide has zero effect on the overall human population.