Robert wrote:

> No, Sophie Libkind, John asked to get all the way to state '50', and he also made clear that to get to a state you have to do all the tasks leading there.

No, I didn't make that clear at all. I _should have_ made it clear, but I said something very different:

> However, you can only reach a state after you have reached all its predecessors! For example, you can't reach state 50 unless you have already reached states 20, 30 and 40.

Sophie correctly picked up on this issue: I was demanding only that all previous states be reached, not that all previous tasks be completed.

I will now fix this mistake of mine.