As I tried to clarify above, the helicopter was a tech demo ($90M) and not subject to the same risk rules as “very expensive projects like mars landers” (Persev

As I tried to clarify above, the helicopter was a tech demo ($90M) and not subject to the same risk rules as “very expensive projects like mars landers” (Perseverance: $2.4B). Your first sentence is trying to equate them. Heli was on board the lander but it was not subject to the same risk constraints. I think your probabilistic risk assessment has something going for it, but not all risk would scale that way. I’m surprised at the self assurance of some of these comments!