@Linkat,
NO! Wrong point. Grr.
You CAN'T prevent death (On a conscious level), knowingly, because you don't know if, by the abscence/addittion of your action/s, death would have ensued.
Not reaching out for a body falling into a vat of nitric acid is a scenario with a high-probability potential fatality - But, many events "beyond your action (Armgrab)" may prevent like, also.
Hence - Impossible claim.
I meant 'turtles', 'big, ocean-(free, not a caged, optical-pleasure Slave) - dwellers.