You probably didn't mean that double-negative there. But still, scope may be set in stone from someone's perspective, but unless the circumstances are very exce

You probably didn't mean that double-negative there. But still, scope may be set in stone from someone's perspective, but unless the circumstances are very exceptional, things tend to get uncovered as you move through the project that will upset the detailed plan. I just think that big projects have to assume a certain amount of uncertainty. Stakeholders will often accept some of that uncertainty if you have a proven track record of steady (feature) output. One of YOUR stakeholders may take it upon them to turn their confidence into an external commitment, but they should then also have the sway to deal with their error in judgement, and so on.