When someone describes a safety case where one of the steps is infeasible, here are two possible reactions:
Step X will be ~impossible to justify; hopefully the lab will understand that (if nothing else then when they try to justify step X) and look for a different kind of safety case
Step X will be ~impossible to justify, but the authors seem to think the plan requiring it is decent; this suggests that they don’t understand the issue and when they make a safety case they’ll likely think they’re justifying step X when they’re not
Regardless, if you think a step is very hard or the authors seem confused, ideally you should explain why. And then hopefully the authors say “yeah oops that’s too hard” or “yeah we’re imagining doing the really hard thing” or “we don’t think it will be so hard: we agree observation O would suffice and we expect it’s easy and if it turns out to be hard we’ll have to make a different safety case” or “we disagree, here’s why.” (I’m mostly observing this independent of this post.)
When someone describes a safety case where one of the steps is infeasible, here are two possible reactions:
Step X will be ~impossible to justify; hopefully the lab will understand that (if nothing else then when they try to justify step X) and look for a different kind of safety case
Step X will be ~impossible to justify, but the authors seem to think the plan requiring it is decent; this suggests that they don’t understand the issue and when they make a safety case they’ll likely think they’re justifying step X when they’re not
Regardless, if you think a step is very hard or the authors seem confused, ideally you should explain why. And then hopefully the authors say “yeah oops that’s too hard” or “yeah we’re imagining doing the really hard thing” or “we don’t think it will be so hard: we agree observation O would suffice and we expect it’s easy and if it turns out to be hard we’ll have to make a different safety case” or “we disagree, here’s why.” (I’m mostly observing this independent of this post.)
[Edited]